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 0xc1cb1ce400d0fcdfacc4722d8cb1466a39ea8aeb99f0781a94f1bebdb5b936c1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/453dc2e1-5d4a-4c00-b692-03c2ce00f661.json and https://artists.proofprofile.net/proofs/artist/453dc2e1-5d4a-4c00-b692-03c2ce00f661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How Sweet It Is (Original Score from the Motion Picture)
Starry (Original Concept Recording) [Deluxe Edition]
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 0x375ec5fe3a4edec5d816038b621800757f6890a81c8d0912f75de171b386617b. 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/USCGH2050888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32c2012e05de3d88ad4a734930db86e8211d3a048e29fafae682f2fe548d873. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c8e8e0d09b0ffb6b6e4d571f2771be1a9ef69aa1db433c25eb67f818a437fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4edb4045adedf917c2892cb24e440dbbaa13568623167395004410cc608fae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce5083fd1a55bc93eae5477f2c5f39f96f1e165338d261c5bdaafbbc88ccfb0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef3cf66891713e07a7be20d6f50577fa7cddfb84d6b072172cdbcf4cf2ae7ce. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c627b50b54c071ebd3217bcb8e511e2a947670d7c7732bb99dd0ca812e1e36. 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/USCGH2050894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033e53562a4ff5b24c67d72a1263744b7cfb0437a35c3cfe7bd1395905c9b483. 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/USCGH2050895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e91ae7a823873e27a9180ade5e7261113cc7cbba0262e6e9c0493b025a8a31. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f82075e7632b9c1b9726b5ff7997ab4b5c2feff1aec207a02f6b57c838dd36. 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/USCGH2050897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc334883f84c4c80155fe9332bb90b703b3d78c74097252b8b5e01b36244c795c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b3d72ad48ac4be5568b915ca66bc86e5da0023bec7dc2f4d9d2c9b78563c93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9df725df8067061eb6c9dc48cfa4f33bf803f0674261155ea9ec9512def01ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a34823f009a246cd1a048536a8c622986dc5fb3aaab1a9d00240a39469cb91. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2050901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91eab675dfca83a8471ae198791fdf67c0e1131b196190c1c39137439f6abea1. 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/USCGH2050902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da980dac91fb201d82e520f1c17269dae2a2f405b42aba9cf615e6d4ef219cd. 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/QMQYB2020316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af2fc66b219179cf09a8cc6955299bb8738476a6c91db7483911a465ad43afd. 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/QMQYB2020317.
Something After All - Original Version - Demo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb359299696bd13f6e6a065a6bb79b5ef6ba4a9f3f51313408a004184d356ac72. 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/QMQYB2020318.