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 0x76c69f99b0fae0f74ab96cdcb2c690b4177cc317d3a71690afd7e86d1d8c1ef2. 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/f3ddb9e8-da57-4279-bbee-f26bac78fcfe.json and https://artists.proofprofile.net/proofs/artist/f3ddb9e8-da57-4279-bbee-f26bac78fcfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hinox Battle (from "Legend of Zelda: Breath of the Wild")
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 0x1ee1bdae1b7ca943f6026a37587b3fbd3f64d3dfa5ad86506dce15a211c570bc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:33Z), 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/GBSMU9245075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea34520e21babd96cf666c9faf0e4b1ba50a4a5016e75ff88853d7e871ce4c4. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:21:26Z), 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/GBSMU7948783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0080a027c74591744be5e23a2951f28e44f6ad0dd49a36e9b16812e32ac657f1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBSMU7937695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2068c91bd25ed2fbd7bf2a8e1e2b590405550d913b4b4064b0cfdc8c75b1bdc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBSMU9415027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f0092028a909fc15f58e231616e56ef5cb3d7d707236cc5b879b008bb5abed. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN72262645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa167d565af1624c5c60a80673fdb413b8b6f329896c76a6e598fb780246e471c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ72387772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aa395da4b81de15399aadefd6dcc3d666d4d3afb2814a6fb0316302d0ceb76. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZFZ72387773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bf4166cc2f61a6436d7581283565f3eab125df24c1a6355ddb7ac942bf6079. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZWFE2337772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ac6676848176aec3a8c5e6465e0548fc15d1821aaee8e1b180dd4fc9ba0ceb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTB42497488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd7ce75300245878fd143f8d2f175dbe5b7190517941c18c082365068d7d1c. 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/QZTB42497489.