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 0x5aa42b05c57472db4301817ba9bfcd0938a2e281f7911bb13c6ec6dd96747d28. 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/aa36bdba-8710-4c3b-b238-f59e2be4c870.json and https://artists.proofprofile.net/proofs/artist/aa36bdba-8710-4c3b-b238-f59e2be4c870.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 0x030249344d7559e2b8f6c977f43c443adc3cae574b61afe03c711c7a86b94f50. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/INB942200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e9c256ed3109f850eb96a2882d9a11bd342e6ac302bdec9007d711d047df9b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/INB942362244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1be7189f2f0c743eba8793dadb8cf9d713c514275459f1c016ad429984f34. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INB942362243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294c3b70a5bc0bedb03b447a96f9dda442931f6d0b3efb9396750a7ee176947c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INB942401035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ba344b08e76648e68f39dbb44c00bc70fed0c4961acbc20836b45ea71e16d. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/INB942401274.
Manglacharan Shri Gurpartap Suraj Prakash Granth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6926fb5fdb23147900f25d055f3cfeb9be68a21ab8af470b55c364a680a7dd. 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/AUBEC2489709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486eb5f1627d78ee08522e60b30292b5232f35d6a2cc507c18962f3678deef66. 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/DGA0P2464930.
Tav Prasad Savayie - Bhai Gurbaj Singh Ji
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a40ec86f2bd35a67ecfe11e9cacdf4a2e69d0d4498d1bb3ef0d2e5b8a66259. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/AUBEC2552094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a8d16e35ff915a6d307be34626576aaf6ad2357f87014f15a115cbbd483eb5. 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/AUBEC2563339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c430a65cc623d3aa308e0003f78be713ffd8a317cd50a3f883731b83c3fea0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR96X2572069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec43dd0a2e3117d689218eacd1ba8ebee472f83296dd62d9a67f0042f756e45. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/AUBEC2573915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabb534d4abc212b4c071210bc520e88fccc8c60668af9fea0a23a93dd8f53a2. 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/FRX202553557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca193471dd79890366200b28fbac68dc764492ee72542570b04f33cd690f85e9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/INA202500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff1f3f7594d64f51a5f3d4417b399c65edaa304472da57f4ef45af29cc746d7. 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/INA202500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454a523ed8d205917f53e7fe332eb791ee0a2248ad331fea6820ecbc9fbd5417. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INA202500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140cd1fc40ee3dc5c97f62e6e2d2290667cfea371609bbafecf00011899331da. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INA202500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d189979eff215b6adc00fccd46463b89ec4e24248645896abbb422299bb0865. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INA202500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c661e30f8eb505869e92a5d58df51d17423383ef237c657d3e7a5e2e7feded. 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/INA202500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7e7c3be3aba9abf6a17285f5e83256b5afbc327181b5f28ed29c42b1add7b5. 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/INA202500058.