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 0x70765002a502c7ad0cbc7dcbdd3270428cc99978a113f6d93e5cd174fc08eeab. 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/d3ad6b5a-cf3f-493a-a0b7-cb9d4cdadde1.json and https://artists.proofprofile.net/proofs/artist/d3ad6b5a-cf3f-493a-a0b7-cb9d4cdadde1.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 0x1aad7c7263b3a8d876cbbd9fbcaac5bcd729798b04b2dad055fe4f1183c02f22. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FR5LT2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0d64dbd1916cb4ed8f436e291b78473cd9e3f759f4558c6d63e8fc4ef9a421. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/FR5LT2000004.
Turn up the Stereo (Live at Harry J Recording Studio)
Hope Road (Live at Harry J Recording Studio)
Heartcore (Live at Harry J Recording Studio)
One Day (Live at Harry J Recording Studio)
Building Bridges (Live at Harry J Recording Studio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f14eefdb93d80fc06486ddb6f75bdaaeab6ef4d6a08c151f32c56d09c96613. 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/FR9W12426069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c5f496669ed8db4916efd5ed6c6321f0f70aa93f1af1de1f822d4a6c9557c1. 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/FR9W12466804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f14eefdb93d80fc06486ddb6f75bdaaeab6ef4d6a08c151f32c56d09c96613. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9W12426069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0447dead075d32b41a704ef176f7ce7606b2ec23f51d0fa8085badfca735397a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRPGB2533090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c5f496669ed8db4916efd5ed6c6321f0f70aa93f1af1de1f822d4a6c9557c1. 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/FR9W12466804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd46db62d20ada09753b74ee6eeaa0e7a0ef6b4379e00fdc521a2c6a91def654. 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/FR59R2466284.