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 0xf96c9f2b6bea827d16acc41692ab204d46a89c1ef8dcf78bd59b514fa0088607. 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/eae2f533-60d4-4247-b022-b7fed9acbc77.json and https://artists.proofprofile.net/proofs/artist/eae2f533-60d4-4247-b022-b7fed9acbc77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pamiętam Cię (Piosenka z serialu Prosta Sprawa)
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 0x70944f9c7c09085fa7c144622c4611edba94662ab584725a3a0b7283d846d825. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:21:00Z), 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/PLA812480092.
Prosta Sprawa (Muzyka i piosenki z serialu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377cad395ded36f763f564136e8d3650dbd8eaf277481e922da394886de866ca. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:32:24Z), 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/PLA812480097.
Samotność (Piosenka z serialu Prosta Sprawa - Radio edit)