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 0xd0cbd2c5d0d39fac2c6f0beb750aa0aa416ffba41e1d5323bfcc52a8764cf0ec. 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/7cc8b566-1433-43fc-a15a-bcc67b5247d8.json and https://artists.proofprofile.net/proofs/artist/7cc8b566-1433-43fc-a15a-bcc67b5247d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7a4a886a97358d30eeb36a3ea69deef3650c7dc25b84cd889511930e28747ed3. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USTV10000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74934683ec4ca9606504c9b8bbb74bacc964c219a5d4c86c76d37cb14b937c45. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:07:28Z), 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/USTV10000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5664a8b86f56a068fd71f0713c66c321e84d97d568efa04f7be26fad76129f82. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USTV10000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef61e136ce85aacd49597ff4374394acede128eeea936b6c2ef341a053531fc0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USTV10000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde59f4ae166e2a8e8c5946706c8db583d6638904d8af90fd1820dfc9edf73f8f. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:04Z), 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/USTV10000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dd30bca0fbe1cf74f8230d7e160c07bf3195b5dc6b5c8d9459b033d1de5484. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:36:57Z), 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/USTV10000095.
Prick (What the Hell's the Matter With You?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9fbcefd9df349a6d0be5ec610237a7e36431cefb379b30df5e6b5764d1d376. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USTV10000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cc1465b8641bf869abdacce76590dc0c065d72c1923f30c36f7614ea55a76a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:49:03Z), 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/USTV10000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7485729ff8744e3bb59c8ea69fe131780745475444b1f84535c325c81556d1. 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/USTV10000100.