Isaac Dunbar (born March 17, 2003) is an American singer-songwriter. He signed with RCA Records in 2019. Early life Isaac Dunbar was born on March 17, 2003, in Rhode Island. He is of Italian and Lib
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 0x51b372aac6dbc1b483307d833b8398909315afa3afb78a4b6c46ed560baf8d97. 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/994356bb-54ed-4695-8bd2-24bb1a273ca9.json and https://artists.proofprofile.net/proofs/artist/994356bb-54ed-4695-8bd2-24bb1a273ca9.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 0xd4dddb4df9d449fc8f6216dc17c2106c0331e8b647c01f96c91990dd45b68604. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:54Z), 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/USRC11903855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3d4e5456286d71fb609996250763b052c10bf25ef07a36ece8c9c7903293e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USRC11903696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c02cff11e3236ac7c6fe7f2855fae005a05632fef2070ee3e123f53926a1fb6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USRC12000537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01697637e7b13d4a295aec90f4ce5a97a80d8da05194418c93d90ecc33031798. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC12001960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b3976b0bc5270ce8de356d9316eabcdd0b9525c30b19d65b72ccc934eb2e23. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USRC12003807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf081af96b93671a5046f1138ec56ca3d4a2492ce81129c84d862c5e798d6dc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRC12002674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24581a44e361ebd9a5d41e8a613248ee0900bd5806d293deadcca808c3599677. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USRC12003934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00003519078a1ce7a89683387de440a1956206399c78478ab2c92d3b96c5b23f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USRC12201510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917de70300ac34fca8e146e78f9e1c55c2903369e3c993ec69df32857c07253e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USRC12400701.