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 0x5b63fad55c4cf9ecd53dad91caba93afa64814fbc72e39d3ea7e6e601afb30b7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/906aa439-5442-4e95-bafe-e5e4eb7e5606.json and https://artists.proofprofile.net/proofs/artist/906aa439-5442-4e95-bafe-e5e4eb7e5606.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
West Side Story (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 0x47ef4b9d4866c550e97958a8d8c3440ece0b58018ff7dea0dc6542f053ea65be. 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/USHR12142265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d47687cf049b5edeeee5ad789b01b638304ca10da75286a42774076f2cb340. 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/USHR12142266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaad371bdb8e4e819b127dc6a7dec86ee52b3cd1be4b6a8daff32f113e40e92e. 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/USHR12142267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d1450c475ae586e139070f74c3a4986f094fe61b98beee276429d893e6870. 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/USHR12142268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f77268bb6428cf479a405ad5229dcb727f816676a84da49d8920fb3936b168. 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/USHR12142269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eea696c4cf8abe4402447580bae9589b2e9e5205b60487f859b1f04a8e4b63. 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/USHR12142271.
The Dance at the Gym: Cha-Cha, Meeting Scene, Jump
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ca0f8482f563d3b8d4a3558e2dc68ae5328b9ffdae8e55b4fcd9bccd8eddca. 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/USHR12142272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e0d7c6cdec1782d540367fe2b794c6a16e0dc3f777b2a07281878e4ea0e32. 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/USHR12142274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067ba1d427d699718c08095e0f0d52da85b9e4a6043eea2c062619af09c98e74. 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/USHR12142275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03438771f18485e04b79db0d9304deb133f53e88cc94349a9cc37eec2a452892. 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/USHR12142276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8338dd49af85741cc705d839295014f6d2248d5e799ae8f4d1a5d458e560f69d. 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/USHR12142277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a55155be29873d565dffb301933beccbb0de6e9ca908169983bab9bfec337f. 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/USHR12142278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb67b8484b3b0ee8995f72616b5f4fd9bea569bf515c5cf8d863cefd367e1cb5. 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/USHR12142279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9c14c1d374b0c383ddb77882b89a440be87df9bcfaa0510345b6eeea6ec4c5. 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/USHR12142280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d20225f03b7148b031f500ffa8c5b1d70366a79e226b6a6b86c5bc3c81ff31d. 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/USHR12142281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18545c98dcc35a2bcad22d2cadbb7a5a20f229e80bd7a090ef1016fe4afc362c. 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/USHR12142282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64c3f16d3e6bf1076546c421256cf33a7a4fc8c4962c62a0664d473605302e4. 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/USHR12142283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43d4ff4bfb4f1b596d33183bd1925f2f19590932a0d72ebe57ebf7cf4338638. 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/USHR12142284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af857597aeee1927931dfec265b21b1bc174851113c878a4f12030820be40d1. 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/USHR12142285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f82d10aa1dce8cd2ab453b11579a793dc49bdde90db531550d05388012882c. 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/USHR12142286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93975dd81c1f5b0e961aeea71565e7d9956595cd39f66a40e7c27707c66d8b. 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/USHR12142287.