thumb|The Hundred Years' War begins. Year 1337 (MCCCXXXVII) was a common year starting on Wednesday of the Julian calendar. Events January–December March 16 – Edward, the Black Prince establishes th
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 0xd20e036f90ac23e4f74b0d13b7292da8eb6dbf1bfcd2ed7f2db8f80a033aebef. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80e4d0e0-8f17-4b56-8b38-a8b10d49911b.json and https://artists.proofprofile.net/proofs/artist/80e4d0e0-8f17-4b56-8b38-a8b10d49911b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
postal 2 freestyle (prod. by PLATINUMGOD)
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 0x6f1314578a445f49c695261b64d61f5c18de87eabb17cef4d02d7a56d633c0a7. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:16:55Z), 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/UKU932342251.
кринжак шакур / 5 бутылок кринжа (prod. by undefined, PLATINUMGOD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17192d182bdba36dac20016014d4c3289509f1bc3e9f575a3907859e27b52061. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GXBNP2562085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5abfbfa78a760421ebcce27e8c9fa6c4816880f28ee42526d2eb996d33cbcaa. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:27:31Z), 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/GXBNP2566339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1d1e48bc32cc3961e7608c2c2af4f2cc114d1d9da044f6919e55d318f9048c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/GXBNP2566340.