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 0xc7866b757e6e93d30efd22d7adb4c5dded79095683fef5f390695b4b2e58cd61. 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/e17c0d3a-0237-4de9-a6ab-fa63d34f4d52.json and https://artists.proofprofile.net/proofs/artist/e17c0d3a-0237-4de9-a6ab-fa63d34f4d52.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 0x4b5c3553ac7eb5807709a17d3071aac6e48d02baff5afbbf48242023b10b613b. 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/GBAAA0700175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10ac3ac05437ae4de98083d2868630a500f26bf6e26b9cb1f4e571c827d39b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAAA0700785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50a34e3a7539b2f5de0c59b26deef4e6fef6bd4c45a810c45b89b441811ee2. 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/GBAAA0700779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19a4043861fbf2032dbaf5bfd0bdec429edcd309decf99731158c20f09b2c79. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAAA0700784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf845696289ddce43c77a01b3bbf5cf767d696b4450145c1c1b78690db9796056. 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/GBAAA0700780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10ac3ac05437ae4de98083d2868630a500f26bf6e26b9cb1f4e571c827d39b9. 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/GBAAA0700785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf845696289ddce43c77a01b3bbf5cf767d696b4450145c1c1b78690db9796056. 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/GBAAA0700780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50a34e3a7539b2f5de0c59b26deef4e6fef6bd4c45a810c45b89b441811ee2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAAA0700779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7847bf4326488820c9af48fef9039c32e34c8a691f5b7ff693333d21984327b0. 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/GX8LD2368918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3c6f4603549f89c6cfb0ae3f495db1dadc9d4eab500fd9bb0d7a4a1d0a7f91. 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/GX8LD2377776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50a34e3a7539b2f5de0c59b26deef4e6fef6bd4c45a810c45b89b441811ee2. 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/GBAAA0700779.
Refugees: A Charisma Records Anthology 1969-1978
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1c26b55c7fd3fa97c600197dfd78fc80fa94068a1e34acbb5e08d6b894321. 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/GBCRL2300081.
The Devil Rides In: Spellbinding Satanic Magick & The Rockult 1966-1972
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3a4993c7809c3736057f8254d20e3e4b55885ed2fd0ac1fa8751bcc7609d6a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBCBT6890007.
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
Come Join My Orchestra: The British Baroque Pop Sound 1967-73
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a589bed0779d1470356c26c9835108c345bce1f6e9fe530e43859aa4b6e4eb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBCBT6990023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389b5fa34acf7aa2efdef849d924bb50dc1ba610ebcea94c76e6cc85789fa53. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GX8LD2345914.