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 0x7ff1a78347e0a4acc3863576d9dd268dd8846e885c6889707d84ded515f89d00. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/434c590f-7062-4327-8504-51ee2fdd4574.json and https://artists.proofprofile.net/proofs/artist/434c590f-7062-4327-8504-51ee2fdd4574.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anii Care-I Am Acuma, Tine-I Doamne Cat E Lumea
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 0x7ee052adc50bc96fc614dd091e303bcebd6abcfa8b5d97dbdd5cc67ebb2b0d52. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR59R1912019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd4783dced8b559281461a7f7fbf07532d8ccc0da6400ac48533d26302e8081. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR59R1912020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b44b56062ca34513e770f56fe65d4ba5a63f409a1702ef08b7b1708976ba994. 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/FR59R1912021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa511da090a52359eb20d9306506b1bed38ca63d1ee14d61eadf5c04a4c7f7cc5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR59R1912028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe997a08ed4af4e931ded0f97339e126923f4f95a9dc31f15f06fc11c594e7. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/TCACZ1746272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d32205792e8910b0b0be9743c2b1caaa9753e937720d0bc7e19183b7f55d465. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:48Z), 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/FR2X42388246.