thumb|right|250px|Alastair Galbraith, photographed in Dunedin in 2011. Alastair Galbraith (born 1965) is a New Zealand musician and sound artist from Dunedin. Career Galbraith's first band was The R
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 0x8d4597b4aba36f5fa4465c0101da785180228f6e06ec70a3ebe440dc346f9f57. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2daeabda-fa9e-4eb1-9c81-28992ddcf160.json and https://artists.proofprofile.net/proofs/artist/2daeabda-fa9e-4eb1-9c81-28992ddcf160.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 0x8e017f2bec3b47e39f2b58856062cb4a40e8100a45210aacd7fee8b95ebbaf91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX452467756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aad640c83d23d91799cb6d5d4e13255ad797777ff62128425f5388f5cecb9b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMQQH1708692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd331e892f9fa6192d8fea9e991b7831fbeffb09d74bd5501b2b5548e70fda1b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMQQH1708693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd179c1b7fc607682607451aaf955f77e58f7d9c1c54b34ab195dc82665957fe5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMQQH1708689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36b654c6f9d10d3d17aed729137b99d38096087738cc5f7d5a9c60c9f9c66d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US58L0502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37065b9bcc4bc8d6568bc0e20584039226a12a6227fba42d8d5576e65aecc5d5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US58L0502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3360fdff29e18d8e783c2192f77705d06f2202ac0d0a7b16974b97b33d17602. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US58L0502003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5152df8bfb9ee8dc5ca80076f330f063907846662ead106a802330cc4fc015. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US58L0502006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dbbab8ccfd3bc25d0cdc0bf328a931e9be1c1001ffcefedc40ba8a58e40089. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US58L0502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c610df3eafb1ed64e4c3eebfb90e2eed1318b9bb9f242c6e15409974005d60. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US58L0502008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d587b748052e9739edd08c5f4b4b4fbd75ba4b43833d01f3b0d2da5f4c6ffe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US58L0502011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa598a6921e438ddbfd31c7951ee4e1a30ebc1085c8b97205ba747b36910d5cf0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US58L0502013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d382748971a0d02954890da8b958b92d8653f54afe02cfb855cf37fc220491. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US58L0502014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5657a64ef6360129b5836565cab00451e771fb18f538c129f12e1126dd88c9d1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US58L0502015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae579d731ba6f0554b7124204e0003661badc3df3a97f4366d278f9825a500. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/US58L0502010.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch