Even as far back as ancient Rome, Mr. Nagel shows, it was considered utterly normal to copy the Greek statues of Praxiteles or Polyclitus, even while altering them. Patrons wanted access to the larger aesthetic ideas and ideals of their artistic geniuses; they didn’t think of works of art “as singularities, as unrepeatable performances by an author,” as Mr. Nagel puts it.
Once purchased, the art can disappear from view for years, even decades. A lot of the art bought at auctions goes to freeports – ultra-secure warehouses for the collections of millionaires and billionaires, ranging from Picassos and gold to vintage Ferraris and fine wine. The freeports, which exist in Switzerland, Luxembourg and Singapore, offer a variety of tax advantages because the goods stored in them are technically in transit. The Economist magazine reported that the freeport near the Geneva airport alone is thought to hold $100-billion (U.S.) of art.
There are many forms of provenance documentation. A signed statement of authenticity from the artist or an expert on the artist is ideal. An original gallery sales receipt, receipt directly from the artist, or an appraisal from an expert in the era are also good options. Unfortunately, anything can be copied or falsified, but these are generally good options.

The AML Standards for Art Market Operators (“AML Standards”) are set forth by the Basel Institute on Governance, an independent not-for-profit organization.  Not surprisingly, the AML Standards adopt a “risk based” approach to establishing measures to mitigate money laundering risks, and further note that “[s]mall businesses may not have the resources to address money-laundering risks in the same way that large auction houses or major dealers and galleries will have, and may have a different risk exposure.”  The AML Standards are intended to apply to everone trading in art objects, and intermediaries between buyers and sellers.  They also suggest that service industries supprting the trade in art objects that are already subject to AML laws, like financial institutions, should identify their clients and customers in the art trade “as higher risk as long as there are no internationally applicable standards.”
* If the seller states that the work of art sold at an auction house, have them provide the name and contact information for the auction house as well as the date of the sale and lot number of the art in that sale. Just because an auction house sells a work of art does not automatically make that work of art genuine. Best procedure here is to get a copy of the auction catalog and carefully read the listing for the art.
Before addressing those questions, it is useful to consider how provenance is relevant to sales of art. Art litigation generally falls within one of three categories: disputes concerning ownership, disputes concerning authenticity, and, to a lesser extent, disputes concerning value. The provenance of a work may bear on each of those potential areas of dispute. Obviously, to the extent provenance represents a chain of title, it may bear quite directly on a dispute concerning ownership. (If “H.W. Göring, Berlin” is listed in the provenance, that is probably a red flag).3
Archaeology and anthropology researchers use provenience to refer to the exact location or find spot of an artifact, a bone or other remains, a soil sample, or a feature within an ancient site,[3] whereas provenance covers an object's complete documented history. Ideally, in modern excavations, the provenience is recorded in three dimensions on a site grid with great precision, and may also be recorded on video to provide additional proof and context. In older work, often undertaken by amateurs, only the general site or approximate area may be known, especially when an artifact was found outside a professional excavation and its specific position not recorded. The term provenience appeared in the 1880s, about a century after provenance. Outside of academic contexts, it has been used as a synonymous variant spelling of provenance, especially in American English.

The most obvious forgeries are revealed as clumsy copies of previous art. A forger may try to create a "new" work by combining the elements of more than one work. The forger may omit details typical to the artist they are trying to imitate, or add anachronisms, in an attempt to claim that the forged work is a slightly different copy, or a previous version of a more famous work. To detect the work of a skilled forger, investigators must rely on other methods.
A variation in composite forgery, quite common with inlaid French furniture, involves the use of parts from damaged but genuine pieces to create a single complete piece that may or may not resemble one of the pieces from which it has been made. These made-up pieces are still considered forgeries. In composites of archaeological material only one part may be ancient, the balance being made up to complete the object. The head of a small terra-cotta figure may be ancient, the body and limbs of modern workmanship. A single ancient element in a composite forgery will help to deceive the buyer.

Of course, beyond AML-related process concerns, any art dealer — just like any business person — always must remember that just about any financial transaction that involves proceeds known to have originated from illegal activity represents a criminal money laundering offense.  Stated otherwise, even if the BSA is not expanded to include dealers in art and antiquities, those in the U.S. art industry still need to bear in mind, in extreme examples, the omnipresent federal criminal code.  Sometimes, the provenance of the funds can be more critical than the provenance of the art.

In the United States federal money laundering statutes apply to nearly every major transaction through which illegal profits are disguised to look legal. Typically, dirty money is laundered through the purchase of, say, a penthouse apartment, or mixed in with the earnings of a legitimate business like a restaurant. When gambling winnings or drug proceeds come out the other end, they appear as a real estate asset or business profit. They look clean.

   Some criterion for judging the monetary value for all this art was needed, and the most readily available one was the identity of the artist. First, this took the form of mark on the work, and later a signature. As the demand for fine art far exceeded the supply, misuse of these marks and signatures became rampant. Controlling legislation was enacted as it always is whenever commerce enters the picture, and the formerly respected tradition of copying art became art forgery.
Forgeries may be detected by the methods of examination formulated by Jean Mabillon, in his great work De re diplomatica (1681), for determining the authenticity of a document by the writing and the style of the terminology. These techniques have developed during three centuries into the modern sciences of paleography and diplomatics, by which various scripts and formulas can be assigned to particular ages and localities, and effective comparison can be made between two examples of handwriting purporting to come from the same pen. Thus it is possible to state that a particular document could not have been written at the date that it bears. In dealing with printed texts, analogous methods are employed.
The potential role of high-end art and antiquities in money laundering schemes has attracted increasing attention over the last several years, particularly as the prices for such objects steadily rise and a tightening global enforcement and regulatory net has rendered other possible avenues for money laundering increasingly less attractive. The effort to subject U.S. dealers in art and antiquities to Anti-Money-Laundering (“AML”) obligations recently has gained new life.  As we blogged, the House Financial Services Committee just released three proposed bills to codify many of the reform ideas that have been swirling around the Bank Secretary Act (“BSA”) and AML and Combating the Financing of Terrorism (“CFT”) laws.  One of the bills — entitled as the “To make reforms to the Federal Bank Secrecy Act and anti-money laundering laws, and for other purposes” —  catalogues various detailed provisions seeking to reform the BSA and AML laws.  Nestled admist all of the other, generally higher-profile proposals (such as the creation of a BSA whistleblower program), one short section of this bill simply expands the list of defined “financial institutions” covered by the BSA to include “dealers in art or antiquities,” and then states that the Secretary of the Treasury shall issue implementing regulations within 180 days of the bill’s enactment.

Finally, under Guideline 6, the AML Guidelines provides that art businesses must maintain adequate records of their due diligence efforts. Perhaps stating the obvious, but perhaps also implicitly acknowledging the existence of practices by certain dealers, the AML Guidelines observe that “[a]ll documents issued by an Art Business in connection with a transaction (e.g. valuations, sale and purchase agreements, invoices, shipping documents, import / export declarations etc.) should be true, accurate and contemporaneous and represent the honestly held professional opinions of the Art Business.” Likewise, dealers “should refuse all requests from clients to alter, back date, falsify or otherwise provide incomplete or misleading documentation or information relating to a transaction. If there are legitimate reasons for altering a document (e.g. invoicing error etc.) the circumstances and justification should be fully documented and retained on file for future reference and audit.”
Some forgers have created false paper trails relating to a piece, in order to make the work appear genuine. British art dealer John Drewe created false documents of provenance for works forged by his partner John Myatt, and even inserted pictures of forgeries into the archives of prominent art institutions.[11] In 2016, Eric Spoutz plead guilty to one count of wire fraud related to the sale of hundreds of falsely attributed artworks to American masters accompanied by forged provenance documents. Spoutz was sentenced to 41 months in federal prison and ordered to forfeit the $1.45 million he made from the scheme and pay $154,100 in restitution.[12]

There are many forms of provenance documentation. A signed statement of authenticity from the artist or an expert on the artist is ideal. An original gallery sales receipt, receipt directly from the artist, or an appraisal from an expert in the era are also good options. Unfortunately, anything can be copied or falsified, but these are generally good options.

Philip Byler, Broadening’s lawyer in New York, said that the inaccurate invoices were merely a shortsighted attempt by the art dealer that Broadening hired to save importation fees. “It was not done with the intention of smuggling,” he said. He also challenged the Brazilian authorities’ claim, saying that “Hannibal” was legally purchased from a company owned by Mr. Ferreira’s wife.
   Artists have been copying the images and the styles of other artists for thousands of years. Up until around the 16th Century this was a common practice, used to pass down historical, religious and artistic tradition for future generations. Copying the work of others, and particularly the Masters, was a normal part of any artist's academic training. It still is, in major art schools, a normal and required part of an art student's cirriculum.

Governments around the world have stepped up their efforts to combat money laundering in recent decades, with regulations that require financial institutions to put systems in place to detect and report suspicious activity. The amount of money involved is substantial: According to a 2018 survey from PwC, global money laundering transactions account for roughly $1 trillion to $2 trillion annually, or some 2% to 5% of global GDP .
Fakes and forgeries in the art world are the stuff of legend, the subject of books, films, and television series the world over. In real life, they land people behind bars. 2016 brought us many unwanted things, but it also appears to have been a year when a huge amount of authenticity disputes took place. The spats took shape from contested provenance, to painters faking their own work, to a multimillion dollar Old Masters scandal. From farce to tragedy, we’ve compiled the highlights of this year’s biggest art forgery scandals below.

Provenance trials, where material of different provenances are planted in a single place or at different locations spanning a range of environmental conditions, is a way to reveal genetic variation among provenances. It also contributes to an understanding of how different provenances respond to various climatic and environmental conditions and can as such contribute with knowledge on how to strategically select provenances for climate change adaptation.[68]
— The United Nations Office on Drugs and Crime estimates the amount of illicit money that is laundered each year to be between “2 - 5% of global GDP, or $800 billion - $2 trillion in current US dollars.” The difficulty of knowing exact figures accounts for the huge margin within estimates. The UN’s estimates specifically cite “Mega-Byte” as an issue, defining the term as “money in the form of symbols on computer screens the can move anywhere in the world with speed and ease.”
Your documents must be investigated—because they are worth nothing until proven to be authentic. You have to be able to trace the qualified individual’s signature, the artist in the question, or previous owners back to real people. This will help you confirm that the document given to you is not fallacious. Unqualified experts attribute art all the time, and the documents might be completely trustworthy.
An important strategy for combating that type of art fraud is research into the history of ownership of the work (called provenance) and the mention of the work in archival records. Genuine works of art appear in historical records and are owned by individuals, and one way to determine the authenticity of a work is to establish that kind of history. Marks of ownership, such as owners’ stamps, may be found on the object itself, or dates signifying change in ownership may be written on the object. Needless to say, historical marks on a work can also be forged, so provenance research alone is not sufficient to determine authenticity.