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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1226eaf48e5426bbb887434961ebace3d4fd4723111b5f6ee80769d4f5e5bc52. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9abf0c0-59c8-400d-bf54-711e4e97e829.json and https://artists.proofprofile.net/proofs/artist/a9abf0c0-59c8-400d-bf54-711e4e97e829.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22307e21f627ebd514ab266971d250ef330893c9576c6359d844c98c159bdb3. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRX282455566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cda2a87a5f0bbace5627de072156402d19b90ace21b6c4413759943fd54209a. 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/FR96X2285920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d670d54c0516607a996c5acc42639e5d5be7dd0e246495ed963deacea6bc054. 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/FR59R2298274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7089002ecafa0565a223791dcc0d10161eccdb19463e21e0f7573f44b3349237. 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/FR96X2285921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42de443962fcbd8bdef19c527e03c1afbfad7782815ebdf2ea7e4316cb414b8. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/FR96X2285923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3491a006ad1d394511ab084e0a2d4056a86a90bc71e041238c62d4e012389ec4. 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/FR59R2244930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b55c04c53d289e781b10dcb20337b3195bfd38f61864145cf0f98868b6f69a. 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/FR96X2285927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7115d9853016d7eecf95462e3629d1062c21eca1b5cd052b6beb0721bf01b2. 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/CALB81267701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ac9ba7d06e721324dc9d6c24dcd5d3bd320a12dcf2382887c2a928be8155e4. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CALB81267702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fc8b738e51e81f5228dc9d8c9e361c8dd0dbb2989185f0d4bca1f91967421a. 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/CALB81267703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fa123953980b8e0024df785b16b9244be05b4afd2d5da2930518b7e330e38d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CALB81267705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a988bee2b2566c06dcd0861417152e2d21a8c5e460230d2a43bddaaffff29. 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/CALB81267706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69e0303c2c2d3a5f4a15d2030df8d7e6cf0ce38202fe7dca20206804f0f466a. 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/CALB81267707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5999402f65fc503911f1a46edd767da9a7c819495ba73f2c18d5cfd0a0728104. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/CALB81267708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3fdd7491330793f5a64812062574fa38915dbb06ec6f06a1c458b904f99ed. 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/CALB81267713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ef3896f90c5a274d71e4af1ca016c364d195dcbf43c890105b4636f333266f. 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/CALB81267716.
This Dream Is Just Not for Me (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5091be3759550b7fbb724bf917a68c51e145a1107f319f32ad5f034cbf8646f2. 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/DGA0M2316538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d670d54c0516607a996c5acc42639e5d5be7dd0e246495ed963deacea6bc054. 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/FR59R2298274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb5f36ff294befb4de98ee0086e1a584f6239ff9b5144217e5b544161b5b5d7. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBHEZ0900258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688d27b44f09ffe693fa20453667b73b01234d9c755f08fdf51dfe0d4889d390. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBHEZ0900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b778be1fd2bd8fe14a156910d7dc83a374368c5d94b78fec50772905ddfac1. 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/GBHEZ0900275.