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 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 0x83e59558a6dbae5cf7ecd65e0c31310b0a616fe2ff8d874cda6cba241b05ca1b. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dda827a9-1fc3-43f2-b5f5-b4aa6ae43f21.json and https://artists.proofprofile.net/proofs/artist/dda827a9-1fc3-43f2-b5f5-b4aa6ae43f21.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 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 0xc894952c167c9a9a659a97ce656afbce6d1c5c1e318abd662eb85a6b332147af. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/US83Z2473588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112020eff0a5ff5356d098e48615ebc63a6def25309f42ec9ca35899176953e9. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/US83Z2473589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d8c0730e47a7ac54e0b8c731055b0a8ab929b96832e95e06858632c09dff03. 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/US83Z2473590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc939d40f9e99bf52816b42102da2e65c1295af61b062dfe1ceee5e03ace49a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/US83Z2473591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44aa4b56c2e54e427a5f2665f7db807292364dfabe61abe6071ec068d8d56e2. 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/US83Z2470076.
Half Past Three - Andrés Moris Interpretation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45def441cb2711974c0fa5e858f42015012f78c197627a7cbe3337ee9ad31b2d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z2470078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20f29905dce9f9d05b2b030d1fc3ef1f43471092fe89194a682f134829281aa. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2487727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7430b50a0e0f0dc4ae78bb0209ee4ddba54dfd3b1422f57b795438e32452982. 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/US83Z2483559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0c58812dfa51b6d818587290250bdac5abbb86630136fec911106fe6b448a5. 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/US83Z2483560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf0164f1d456ddd0173f6748ebab53263b2d71d18c825a91b5c1f0fb1dc1dea. 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/UKR6V2481890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd5d1cfde61f934df1b628f7c49d9079b62d4f69f4a8a4b2248676b27cba0c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2484065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea5946b8e42eab5379e3514e1e5b4661396a79fd2b73823c13ae2a1683174a0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2477465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26be0bd0d8792b4fd7445d0149fc45f89daf864a0e74e17d85e945b26720fc98. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2478907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc209d7b340994a1d48c61b9209f0a0c33fee23c9ceac1ee5d4571cc4192a067b. 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/US83Z2478909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043e10c056afa1fa8f75a3ad0ce3cc52d7a6861de1f3dc73793b63a57c04e028. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US83Z2478911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fab42a6e78a32c805674c246d04753a3b7cabb203109bad852e2e02de2cce9c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2478908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b69b8ced66837ec6404ca08bdb01e460e6658aee06989057d943ac328e0efa2. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US83Z2478910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d42b38e3513ed95dacf962a05ad23af6efcc711ba4e7e5117e26fb25883308. 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/US83Z2478912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fb1bb7ace4594cd532552ccd52f08b6a0719e676e645583b064fa243679f30. 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/US83Z2478914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc209d7b340994a1d48c61b9209f0a0c33fee23c9ceac1ee5d4571cc4192a067b. 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/US83Z2478909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50995e6cf265153a366145a118f42408c59e25b22cbd9c97951a9942e78d22b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2467667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d123229986b4ff3c51f494d315028f84a6016134c4cc503825a813f7a975917. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/US83Z2467669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d39c44d094873c381eaa6f52fc7c6120475b057679abe0906362895602de4a. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/US83Z2467671.
Yin and Yang (Nicolas Giordano 'Sunset' Remix)
Yin and Yang (Hassan Maroofi, David Charpentier Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0720b5882de0d5865e3d1290c5abc7e50326dd8695744df20eb36725ecbfec21. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US83Z2350869.