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 0xd3cfe09ed5a6b3c3095d3b1082c38beb527c29bc1827669cdb79c58762d015a6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62cccd1e-c870-47d0-a806-e709f2a4e0c4.json and https://artists.proofprofile.net/proofs/artist/62cccd1e-c870-47d0-a806-e709f2a4e0c4.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 0x8e621a9d4cff265a44a9e2aece05daf0fdcec32dadce3e62d7237cb4c28011a2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAFDM1800006.
(if) you are the ocean (then) i would like to drown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234bf00fb0d97c95c9f524183d13756812982565925a4035467bd02821ecd9ac. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:35:54Z), 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/CAFDM2000004.
(if) you are the ocean (then) i would like to drown [Live from Westpointe]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1489e86fdc18b36266f451acc617a6d0df1c3fa50a0418cc75de9204361a0435. 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/CAI372200402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8120bc6cfd932b5f9910b214850bda9a4333fc1b054d4fbcf832e1d5d1b8d8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAFDM2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb724d5112222d313972f1827386cb59707f16678f2dd68bc6604723cf2d4dde8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/CAFDM2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcb62d4e673d1395576f29d6cfd1fa70c53a71de8325c1e2f3045ef1404b312. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTGW2404822.