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 0x487f6151f36f6c0727e66397533ffe2b605c5397bbe426874d0ee7d280c5139d. 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/2d980b9f-5876-44ae-991d-5cc80fa714d2.json and https://artists.proofprofile.net/proofs/artist/2d980b9f-5876-44ae-991d-5cc80fa714d2.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 0xa1fc0882ffd7f7ceb6280dbb7efbf816bd7e3c9824d9ae34d8a6edd5818ef813. 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/USLZJ1937873.
Tell the Truth (Theme from the Podcast Call Me Curious)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884f22fbaa4bab42c4cc64c782f94fb45518711eca5bea72c751dba972863807. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:57:45Z), 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/US43C1622239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ce5d2b20f0fffc29226ad23be93daa575e0b8dd0ca75b2166327801e281bd2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:57Z), 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/QZTGW2404786.
I'm Not Yours And You're Not Mine (feat. Yianna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaf53fcf246930c771b586de7f9051107b9840bcffb142b82c73966af73e228. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR0012742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528afcb5b7de638900ed4e1e595ce77c0077c752279f2ef0f900eaca87bdfbbe. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLRD52302415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0a8d73b94c80fb654b8e0e88547b8a955a41615ec9f16e22e6dd18acf490d. 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/NL8RL2325961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aaf53fcf246930c771b586de7f9051107b9840bcffb142b82c73966af73e228. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR0012742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528afcb5b7de638900ed4e1e595ce77c0077c752279f2ef0f900eaca87bdfbbe. 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/NLRD52302415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4419a9a1c19e0ed1553066669398f24c79705d315c7fdafe7db837ab1f02c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB2LD2320160.