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 0xc05d6e5dd6aa70b12b1eacbc2a1b162e2a7c84df53a6de0088dd9be77f247b93. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dd41fa1-9d44-460d-bfd8-a21d81f163f5.json and https://artists.proofprofile.net/proofs/artist/5dd41fa1-9d44-460d-bfd8-a21d81f163f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karmyog (Original Motion Picture Soundtrack)
Parvatichya Nandana - Dhol Tashachya Gajarat
Aavad Vithal Bhajnachi Paramparic Abhang, Bhaktigeete Ani Aarti
Jai jai shree ganesh (Shree ganesh dhun)
Vandya Gajanan Vandya Ganesha / Pranam Ghyava Amucha Natha / Gan Gan Ganat Bote
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 0x49be5d4a4c1b39c5595ac1ff1d5d22e362d460f2f49d6b289dba114c0dd90ab9. 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/INS931611432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ea7d10d9df40eb5e7716005f1c9a29811576ad943e0b2dcb56a55c7b428e94. 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/INS931611433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce3c2a727d95299997babca2a3cc93e8b1f891e7327a6557ecf7c48fab7bd8. 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/INS931611450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed2363e3a4442def814c549c9ed5e27022dc54dcea95d95476919e959e5e22c. 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/INS931611451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e74c80d9da5243d6667fcb05ee9f5f1dc1c9e837197e8afa1bfa9f003f102b8. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/INS931611454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab929b7bdf195ba6f686af17330822fffc253ed153f792cbd1ea2254f666d01. 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/INS931611455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5ebf3aa663837c09d05d2e827501758c48721fdaffa31d9f902486a0db0caa. 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/INS931611444.
Dhund Hote Shabd Saare (From "Uttarayan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc94cb02eaf20800c1939a95d3ee412430d4139933ad4f4bb6590bc1972b82a. 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/INE152400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849e30b062f84740efef7a31fa6e1b45e17e2d36599be89a5ad1f4582ad09c22. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/INU101201572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56ff023fe97ef83cb87a5f46f0258f8e6de2b31fb0a4f13b6a1139ddb4b802f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/INW160600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcffdd1707133a04587f2b7f09665937c67520336aca7f3d9d47d9d572550ead. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/INW160600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b8d9d4ffb91b5601b357311335e9685e7a59de6c9ad1f52dae3bede2ab6eb8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/INW160600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f29d847ee2b7ec074e907686c45b1ec1351c15a0a8c5fbb824c93ef3c28e20. 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/INW160600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de6ea5c6af329aa6770ddeb07dd44a7afef64bf63ead1194c670c6d35ff2e58. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/INU101200802.