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 0xc60b4a54da0ba2be3b233c9ced4e19156ac0f70bf700a6cb8d1dc905690d16b4. 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/348c34b5-fe43-49d8-9125-6de8f5ae92de.json and https://artists.proofprofile.net/proofs/artist/348c34b5-fe43-49d8-9125-6de8f5ae92de.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 0x784460b537ccf0fcef544615fab7d27366fe2424fe93524d580ca39a8d76ed77. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR96X1743730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a14d7be717dd4ed5a220bbf7ae29e1be445185c7cb1a42cf34cce72b60aa53. Chain 2 (Bitcoin): anchored in block 957959 (2026-07-14T05:54:20Z), 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/FR96X1748166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77305fe6bec58707935b6fc5a6aab2532a37a019ef1ff2ff835a281950fc553. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FR96X1748167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54514e423a8a030348388096b3d1ceeee751ee0375be5a315f2f2998bce680b8. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/FR96X1808731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b25873d518c34f8ba58e3457220e5abb82342da2d80f3d72c1f74f5abbc743. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR96X1808732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3b8bcaf8ecd9179dd06dc95051cf03e7bf40dd2b34c1a75a4af699f2cbccbb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FR96X1808742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb989e2c1802f1e11c3c4adedb7107c2df77618031752004500c92fa97389c5e5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEUV42000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4ad6eac5175f0b1cf611e3132185ece51a67febc2828aeef35c4d2f926afbb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEUV42000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd963b048b2ae520280efec634bb9207ef2bcbd6c55526ade5a1e2e72bdb53b7f. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/DEUV42000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c89f24839da7175975240b891bc67f25dd665fff358873fcb97b7256571f1f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEUV42000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa209c4e9a677f8081444beccee5c252a3b15bea5f48adcfadb0d1130be08876c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEUV42000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76e2972d5e263dbf09867d96c157b3c4ab4e3dbf51e980dabc62611150af7c4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEUV42100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cd3916eea58373cfb5ba52445ad3eb7f7901ea83809f8e04a2d6f04a3a961d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEUV42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653cbb7729d8bf6a5d77adf06e6de54258a628decb67847ff826f1588f5b855e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEUV42100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70d280719003faed4e0367f4fc5b47de8c210ea0a7744833c9dfabe454ca8a7. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/DEUV42100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b6bd5317bb0496bece5b6bf9c7de2f90906dc9034b45905537bc5b72f9b34. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/DEUV42100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d28738caae413b3c03eb11b0be15b3cef93881f1c5501c85e6b9566f183220. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEUV42100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1ea200c284fcdb4779bcf478b177fc60c123ce9066d8b90864e416e2f1b376. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEUV42100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb989e2c1802f1e11c3c4adedb7107c2df77618031752004500c92fa97389c5e5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEUV42000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd963b048b2ae520280efec634bb9207ef2bcbd6c55526ade5a1e2e72bdb53b7f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEUV42000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c89f24839da7175975240b891bc67f25dd665fff358873fcb97b7256571f1f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEUV42000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa209c4e9a677f8081444beccee5c252a3b15bea5f48adcfadb0d1130be08876c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEUV42000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76e2972d5e263dbf09867d96c157b3c4ab4e3dbf51e980dabc62611150af7c4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEUV42100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cd3916eea58373cfb5ba52445ad3eb7f7901ea83809f8e04a2d6f04a3a961d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEUV42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70d280719003faed4e0367f4fc5b47de8c210ea0a7744833c9dfabe454ca8a7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEUV42100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b6bd5317bb0496bece5b6bf9c7de2f90906dc9034b45905537bc5b72f9b34. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEUV42100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1ea200c284fcdb4779bcf478b177fc60c123ce9066d8b90864e416e2f1b376. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DEUV42100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1123750434694ba1777ea47064a169b590195a85a8e8b8d13ca5fe4f42b3862. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR10S1898363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa05abeade3c9d99abb711e6f83e317e81bb3a108a147649fd7b38a35d397901. 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/FRX762427277.
The Eye That Follows Suit - TRAITRS Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351e3fb8786f156494d8b24abe5d119bac90528d603066fe63a89d2cfa0f2c5a. 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/QM4TW2355160.
The Eye That Follows Suit (TRAITRS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351e3fb8786f156494d8b24abe5d119bac90528d603066fe63a89d2cfa0f2c5a. 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/QM4TW2355160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8746fed9787f23ccc194d09765164f261a785b4f912b547527396e980604a1. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QM4TX2344315.