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 0xa4300804867e4061bc0d6e46c94b91aa1fd4199f0ffe1d2313323ce6f06218c9. 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/f396c6e9-e538-4010-aed1-129cc66cdcb7.json and https://artists.proofprofile.net/proofs/artist/f396c6e9-e538-4010-aed1-129cc66cdcb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Allah Hu Akbar (A Bouquet of Hamd, Naat, Manqabat & Salaam)
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 0x9d0ed50b07eaddd26740abbfcb9d7fdf7f62e2e67085640a189217c08fc50570. 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/INY121000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cee6fa0bae165757745499199688caf64b904a19fa3484b610fd27ae8b86196. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/INY121000232.
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 0xd66cb62b003b558f9e281457e666ea24398a8250d55b6ae9399f5b80d9d1cea8. 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/INY121000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef92da067eb6c3d406a0394e04727e4977ce6e2311184c3057c435b539af607. 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/INA8X2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758f42a0ffae8de5d394b93cca4d7c58596f44e97c0c0d5479141768791b67a2. 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/INA8X2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af10b92047120d1a6c131a0f76bebff9b312b6c2111eb79fe79f7734f3c26d0. 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/INA8X2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f9c20dac98129c5e49eee62794bd629734652dc1de7d6e8e9e662dd35541a2. 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/INA8X2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a9bddcabcb66c3ecd2db5450375323e898521d3f00c5baf87b404f9728414a. 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/INP912200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160b48edc221a953bf4a3599c635e97b26edeafcc5845afd13aff0717e6cba6. 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/INS181905658.
Sniff (Original Motion Picture Soundtrack)
Chadhta Sooraj Dheere Dheere (From "Indu Sarkar") - Single
Chadhta Sooraj Dheere Dheere (From "Indu Sarkar")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f1cf5a7e635d942b094ccecb945bba11c9a034689ee2a337e38b41b229e88f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:25Z), 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/INH101707055.
Aur Kitni Door (From "Sniff") [Lofi Mix]
Aur Kitni Door (From "Sniff") - Lofi Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74563cae29cf88a7ac491fd71c6759202ab78f84f94edd8af89a3500a5298f5. 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/GBSGZ1502529.
Bajirao Mastani (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff122668b087aa4735349cb4eeec372c2a3ac0c6f62460f947ad9bb0a296141. 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/GBSGZ1500573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a167e2c770a8c371503c38335dea75cf32342ab695b6a5166149130e2f3ed1b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSGZ1500568.