Jonah the son of Amittai or Jonas ( , ) was a Jewish prophet from Gath-hepher in the Northern Kingdom of Israel around the 8th century BCE according to the Hebrew Bible. He is the central figure of 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 0xaeefa134dd8a8ad16b096ea35a5ee770b95bac11b93d9da132e860372d4a9d18. 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/ea4bf379-ac9d-49de-996e-e4abbd757c8c.json and https://artists.proofprofile.net/proofs/artist/ea4bf379-ac9d-49de-996e-e4abbd757c8c.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 0xc871389be962fcfd77e3697d363aa00647de48366139e5825870d335511c7d1a. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZHN52472545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1c99f946e65d2f980f8cca84cc490639a5390360f3a417823c76c6e770f76f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWX2428424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a3d84498ab390428930eb3e5f4f0015bf9c15c59b1d3c7c94cdb98c9ee0488. 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/QZZ7M2449968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2962c8eed97842efaea2b9fdffa8ac7b32ffc062ff51a14c070a61ca621d142. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN52513975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b58509e493dd246af5f6b9a40ecb9b4ddbd7fa59946680ba5e5f3dbffede93. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:56:14Z), 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/QZHN52500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c1f114a9f6efc12482eeb9ef4207d5e402e228d46eac8437bd775920bde42b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:08:16Z), 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/QZHN52502057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067c52c092ec312d30a6ca7c79f08cc8ab06f2a606af435dcb09c03d5449f735. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6M2519788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb8ccd1e816aeea1c7b56e42c47cd06428db8189d378c9edaaccb01d9c99ee8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6M2515199.