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 0x41e78eba385de7cfa60321b399368c50a2fe9e89f962df07bda0a9d307502483. 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/64dd91d0-b9be-4bee-9650-6b07c6a2acd7.json and https://artists.proofprofile.net/proofs/artist/64dd91d0-b9be-4bee-9650-6b07c6a2acd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lead Me Home / Be My Only Pre-Release Singles
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 0xe7d1ccd5896c0207fab2ca15e0b6cfee2528b6dc6a3e4a5d8be346143f7451a6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USXAN1000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b6566ff8d5a909ca9097c210862887ee152dabc5fd319a189a617620301fff. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:16:44Z), 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/USXAN1000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5b37c29acc931d25491d2249e5f0ac6937f9adf3d58396fe2c4f139cabecb1. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/USXAN1000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf02c4a6e6aa6c85bda110080c62a8b7e364661fdcc53e2075c6939fe24e057c. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USXAN1000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d7f965e055de1a74a06532ad0f3e0618fefeb447765c2b32d9903174637f3d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USXAN1000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3752353db1f979731dc26ec4767a1c4259ec5334fc5e2c2b386a241ff891f22c. 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/USXAN1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b330544ffba89b1c5012d327f793f284e6cde3a6f6307f70c29c2c5be264b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:02:56Z), 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/USXAN1000036.