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 0x30a525f9fdcd14eb6821ae583d9a857f886d4181d472f51fb60f298c666b7bad. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad04de41-3e99-4bbc-804b-336e93b5276a.json and https://artists.proofprofile.net/proofs/artist/ad04de41-3e99-4bbc-804b-336e93b5276a.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 0xb69c9cf222482a5b53410e056358d3a612c81858168c4b6a492edb8d035031f9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:14Z), 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/SEBGA2000706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe748fe1b88222000821e5306da66b030f6f08355a3acd000556d5531d3e39574. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/SE6E82000201.
Trembling Hands (feat. Siri Gunrup Järvinen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52edb32dc0be62945254a5281ce98671664e21836d752199acc4cb97c6af11b5. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SE5XG2501220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf902c76d72a374ca6ea62ec618c879d7d4ec12cf0c1231a7d8956659dd67a1f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:23:55Z), 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/SE5XG2506447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a42e10eb48ceebfee6059d02f6748845d853203b70c887750989bfa7c7cd0d8. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/SE5XG2506448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1b82645013e759adeb3cc9169fbe6de0a0cd4c059e3b26bb2ccebf597c84d9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE5XG2506449.