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 0xe00fb74de2698f0162c7724800bd35dd6ceb4143bf0b5a8ed1b2774e9b16e0e4. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f94bfa63-237c-4ea3-914d-45ea1e5b0348.json and https://artists.proofprofile.net/proofs/artist/f94bfa63-237c-4ea3-914d-45ea1e5b0348.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I am the Super Hero (Original Motion Picture Soundtrack)
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 0xc904283fcd404ec12479f7d0bcc5d4c45fdf476d8112cb4bdcb469288fcfc32e. 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/QZNWS2271203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71522ac0ce0af4663640f335aeac4ebbfc598658cbb2a028ff06fc9e4935b986. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZDA62391276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98e88dd3217bd825e6425924e91bb98c6d3f0161861090bdab05fb87a06e082. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTB32338098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46af2d6f615e35189265d04c1c3d0aeb5c20399794e34043b49b61156f8bb8e3. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZTBA2348044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb25247829d823dd0f6f959ec995c3c687f8a25216c4f2766325ed083c9484a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T22:58:12Z), 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/QZHNC2455795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ffec32ecb663f4f7c5b8694ee4711a5bc61cbd68d5ad706422744ca6dfb324. 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/QZMER2413098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e84476ff8466b787263eebac22138349339b80fb264b006475b575a070398d8. 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/INS2X2401504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46977920a5c013e9c8f44d0919f7ff93174a80a28283d898ec6cc40b890911ba. 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/QZTAW2456273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e669bb0c38a36da87ecc06dc9fa0c502dfce30a2658761e60efc4af93a0eb98. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJI2585944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6774fc030caebb2d8e20385f7b167911897d28ecf3da82b51cbcd68e4848ce17. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTAX2519058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977921a48adb6649eea9582ad77c796ddbe2d1c85305707040f6c7a9e613dd1c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:14:11Z), 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/QZTAY2518777.
Tomar Ghore Boshot Kore Koy Jona (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7c3c4973f0ad97305f7bb7cf26eb515e2f65a37d36dcfd912884e06b78a9f4. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZZ782586810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74ac8fc9e692a7a8f4bb4b2e6d98755228e45ba3253e863de87daa7c833aa62. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZZ7S2541636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcd516d84468a283b0bc61f13f6b925947f8b76d4e3be6f077a9d5a15771631. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QT3FA2574266.