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 0xaa5af2943bcf85ece1e8c1a35320b3a7ae4c5b5a5822f4a7ed11129814674db7. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2dfdcb9-543b-4459-a5b9-5f938a2b3185.json and https://artists.proofprofile.net/proofs/artist/e2dfdcb9-543b-4459-a5b9-5f938a2b3185.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing Makes Sense (Acoustic [Live at PAF! Studios])
Nothing Makes Sense (Acoustic) [Live at PAF! Studios]
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 0xaa5635563144bf2cb32fd1aab7f87987afcee60eef4b9de0b2a4583318be8c12. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GX4LG2200647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1667a211ae85dce58a6139222befcac20b0b9094ef5c6fda380717faa242d6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GX4LG2300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc320c9131c2cf197726215903ede60fa8dc37e40ba4cc56dddaa12169950021c. 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/GX4LG2300856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346d0742699a294610ccf3d0ca1ade65c882ad2ca640adbee6cf2b7a879bfde7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:07:05Z), 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/GX4LG2301118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7780576753342cee8d3cc062d4feca593f24f04fcf578d47b24ee762aa14d0d2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX4LG2301200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091499adcf1f706d0d0ff93e8c4390ef1bed636df54bcb50faf128cceac3520d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZNJW2434898.