Marc Copland (, ; born May 27, 1948, as Marc Cohen) is an American jazz pianist and composer. Copland became part of the jazz scene in Philadelphia in the early 1960s as a saxophonist, and later move
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41669d7bcea8cdc7d26adcf7b83d4ac25d381556619cd71f31e1bb482bc23eed. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf4cc626-e276-4eef-b931-869f1c6eb5c8.json and https://artists.proofprofile.net/proofs/artist/bf4cc626-e276-4eef-b931-869f1c6eb5c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41773c25a9d15f93c3f8f2dcb5939d1c517f625d4c7cb451050324c809a7073f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b3fb49d07f6dfc4704fdfd0f73937e4df377001f210d2726389484eddb6bb0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100449.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008de220a24716db568cf8fcf85ad6090f01e5f3e181d65c9128102abe7ebbab. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7649b944dde924050095b6dd3bc8272bde23364b5c337afad701c47cb415f85. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b00072ab0a31ea8b899c5b5b1b17182e0baadd1dfc04dab11e40b2b194cf13e. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d14859b43bbeb2f095076ed7bb62e174d94ca30bc97c90a9c86a45b67f9759. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843bded7d68cc259a8d70a53685fe26bf05b4ed4ca3dd74c25a043951cb5ab8e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846ce16fff5bb579ec7c47ba6d464de7705ebfa303c4cb9c114f42c7d9c64f0e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d6c87537bc7420b9e0d615abec35a88253f59727a0a22108ba08ccd5f0d195. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150100457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724e56591d0b9f2f2ea78b78670a2437343094da383790741980c5709e0f6435. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92b1f788263a86adaef12c34972a1ffee8136abe799ad54d69719042a5c2107. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcf3262e59ab57cc1ec3086fb90fc1391c468840c57a42117df122b5187fb4e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afbf5e6679f1d8c9c0c7b6f30276787ef9f3456dff2228b2d8bed05ecb01ff9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde99fddd0b2592732255006758bc2a3d4e0accf4989abc9bcd0013e5bace72b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6432aee2dfc1f18d2cbf8987f9b6dd243facd2e014b8e97ece8b7cf169cbea3a. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43de48a43b4c9023210ed1e0e6c5f37255b05add3815726eae3ca3c11d8f7a7. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d013ff9bc2f5cc7569ddc7d2cec28fb1879c77a1736ac72421461f0e052809. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8468b78c704467ce2578788f63a842391fbe5e6711f73db6c2b50622fe237ab2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU32024213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c9771a56e5c48a0d2da1dbdcc8a9436c6c7c9b072feda07b34b06bf3e1527c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26603b9383776f757a073f7d1d013ebdd4637b23f59357e83c3ecefb05f0196. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbedf5c85f31af5bf0957198b576b9bbc2b90323b79cd00e04ab171c2c8c745. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c316d62aa0dfab1ebcf1693e1ae8890ba7cdd36325a27de3b727e243200bb2a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc740bd7cb7a81fbca4aa727682bd77653f6bb296df4f8cd5aafbd07e638e34. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e2312f43ef443bfd87c385963aa28d5fbc71ff3c0ab5b38824c32057a83566. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6f8069b143a3be35a8087f3bf238ce9b08c33828b765fb41122fe63fcf9eee. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0792b52dba633943ce93a03bc6bbf58ff382d87aa40b87a11407a690ab145dc9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1063cdc9f904cc9ad101f76c0a952d7381c2ec985ab71f44014c2f03840f791c. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31916356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03ecf82955821e41286484c81dfe42a4b31309f4fbebfed5d8509aa26e86b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41206202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f93275ed6546b5ca046b36829cee8e15077824ea07b6f6a4b666271527cf867. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41206204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852f7fd24e47235bfb9215daf9a543c779b98d43db7e3cfec64af26146908488. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41206207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b5c9df5b41dece9ab8a5568c57b7a81c5985dcb39c1a613a6ce17c89e73375. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41206201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb26db41e3c2b310f1e5f360c667c6d9b2656208413eac98bd9254c564e4ed1f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41206203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b5c974121c0adeeb3fb48e1270c83dfff9536636c2d618e318081ab241a828. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cda83fe9971b3259ec4f625fa72ca8f4e09148d37de5b78d134845eae3a369. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5c1b6cbfaf8285744f7ff576639c6c633330f1e38691df9d4237fc6e709a9a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf464a1b37d717c81d2c104e4ab03bb90cf83fa3e1e6e9ed37e2618f0723a7f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f9d04c97dc3ffb16544bd204b5d9c026c51267dca26237744a152cbcfd1d05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1e26363ee0e35d3f3644876a7db812070df04ef11d866ae5653081a7369d2. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ace73bb8555284fa564ddd795e2efcff3b5d0e5113f83bcad26bf45c4c1afd6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b9b5840e37a7536b1431cd8a167584155d802e51f7199e0713927f02e7812b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6ec55590e8be64fc929b034a6a2d37eca6870e8ff8eeb13d2f0aa3ad9826d4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN41105808.
Marc Copland - David Liebman Duo: Impressions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9325548b9d82836604e866c3218e87a22f6a0286592a882c8483a6aacc87e492. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded1743407cdc0f2ea11f3ed64cd47e28eed1fa763bc4a06881c9815a3df0a48. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ab84133b7e4b43c1062c536a14d3319b4c3a487df53ed7ec96127ba8ad67eb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9295cd2acc00267f5bd4b2fbd6f589f634a723992a1df1ed291b06d0cae83ea. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67b18e43c892fb7671b3cfd283bbfb76e9a0becd39b4652e92300613de0ff5d. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec42be360d35d457f87e33c81cb2b07ef5fc915e6f125cba9b9b966650b44d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9762e4feb53e498ba4907f4aa144d521460531f366a3b62ee6486a2d3ae1c1fa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b78f97a78dddf963fde051e3447dfec6894138f75fad7c806336cd2ab2d30d5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce36bd321f535005517a3a63ca69ab02f76625335714039b57c1c390877aba33. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fe18558bfbae4099223e52b45003eb5aa9a98e6bff470b035ee365f96998ea. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40904101.
Night Whispers - New York Trio Recordings, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa250c91d3320b1193c4f67cf1f1ec9c606d740922fedf70b5752c221d612a3b9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40903701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c95d8fb344978a3fafdc4d472708ebd0949612bc2bcddf1bc431a42180b7b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40903710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808128c60b1f183d31aea14d8686653cbfd2e56cf05ff510c0f83f63fa9fa7e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40903703.
Voices - New York Trio Recordings, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73bcb227cb127a1ae724bf4df9c2838ba90c9e1bf2bd348468fc5f9e3194b52. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6cc6eb8e41950c03c03cc450c66f3d7e1c089a7f2d07a98b6c445bf7952a2f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5b80a01d0785e007044f5c931b1e096f6e2e410e53e21d6cffde3c298a6807. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19c36f8b31ed56e07674bea6b027c553de1eeba7ca808c171dfdd47fc41aa04. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a473374d559cc0df34d6a674c4fdff04fdb3b84dfcae218a4baa2157120d969. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e595b628515a597ba8b8a0216e4e8f0cc4f359a4c1be5ccd21184ac65d5165d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40702308.
Modinha - New York Trio Recordings, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdca8d10bf8a9aad4352036ba0620a7d54d85a92dab6f2cb6768db8d27385d1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40601804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d9f1bd0204f0d08dfba685773a2222221b68bd3574ab811f08068935b8ceb5. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40601801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3753fc6dfcf86cd8aa5e1e39b35f1bab6054d4071f12f61e528beb2034b68bc5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40601802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57bcad302052a6a6db6e42f5074cca0bdc2a181973555443edde9dca1488bd4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5638d9801e078514c982ae5cab9591e9bfa5fc0110c317c6e9ee2ded1eb1e7b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506b7dcff75b920e54b3dc25e61ee98ce816e7483a1c2ba3dc9b58072e42469f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f43917b6a35023365952ce01411c5e519715b668f96ab99bb69d7463b9ddfec. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923f7c8adea64bcbea8d75b41cb907ac5fd90cc0c61ba5c3f461e956c3d5817d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e07dac47ea7361dfc36856d25cfd82a60b1f25f98275d4600c984e1086b971. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818f5343719952157730ee9b66133c7d1d0bcae521367c0f626834ad393c65be. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEN40501507.
Marc Coplan - David Liebman Quartet: Lunar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd720e070f438e512a3463a960662e9279dc60ed001d572f23daf952ba4b0e74c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229a4cc70eb6103918b8f67626d8a2d4e881df61cf0aeb124e575d601eb30543. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fa3c01882f136beee1f17d59b36b74a5333acf23c1ac14f3e09e959c597e48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125d1009c09e6b2e49f4b15953c85f9f15a21af6bf365686f38daff78bda5c73. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5190cf5ca18b72aed66752ec7412953444d7c5bd245c5f665c6bcf96701b31d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1020f882f2e06dc4b4519094ffb35bf1eecefd6bb9b2400a187fb401c8fb5a62. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55015652735976fe7ab44d7c50b90dba24d1f653ef07ed9dd5b6474ed5a7c44b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVUQ2400014.