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 0x7b57ae19e15dead1791d159b92c202e89590eaaebfd50323131943d621395206. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a71f0a2-d4f1-4211-997a-735b560f509e.json and https://artists.proofprofile.net/proofs/artist/4a71f0a2-d4f1-4211-997a-735b560f509e.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 0x66dacc662fa9a400df5fd47f2e35f0f46c8b90e93c35050f6cecd0f2983e3793. 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/GBAYE1100448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192b6a8940a1e114f2c09cf2129989e0d361910af9c8e3fa8fdb877ef5f1472b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBAYE1100581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00763eb789a9cfdd5393faa45e04d62faabf62b90882f7be151255422a56d988. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:25:18Z), 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/GB5AV0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dacc662fa9a400df5fd47f2e35f0f46c8b90e93c35050f6cecd0f2983e3793. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBAYE1100448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192b6a8940a1e114f2c09cf2129989e0d361910af9c8e3fa8fdb877ef5f1472b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBAYE1100581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0275d7cde58abdddc96dc7e60c01ea6ae7022f789164bff858139fb7310f3b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:00Z), 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/GBAYE1202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d46c4064ef52c786cff0449027868aa983a5311f2467b14930ebcd3a6ce014. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBAYE1200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aba9f1d231d2350a354f8802d120aa7170cf8bf0a386947d06fc7824164424. 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/USUS11100476.
Alive (feat. The Good Natured) - Basto Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b0be9e1f559be902eb7a49cfd1ae78f559836020bb49f639c22fc7b50ef90d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUS11100541.