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 0x6803a7332e8ea90026cd7ca306a709cd7c2262ce052f965a9f423a30fe9c6558. 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/ea3f842c-f54a-4854-bd91-159f0865b0e8.json and https://artists.proofprofile.net/proofs/artist/ea3f842c-f54a-4854-bd91-159f0865b0e8.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 0x6c5eb5d34c8b2659c1f6447b3c88a63e39ac232d7affd45a7a6e13719bd8093f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFZ32432976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09391d85316646763388de86ffe7e417cb7a280d205fe5a9c347f9e28864927. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T18:00:22Z), 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/QZTB32409906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38335ebe6c0a21151f2c6674f28413fe19360be9455cb2c88248ebd4c9ea4ece. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZTB32409907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb920d1b97823ca90d822864a93513f02928d4c9bf3b63799e0c1c9d1a5bbbef4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZWFU2444594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace50721b62c6bdcd9ad91fa34804c7f5b83c4d100bf4eb6b3aa533fa6065e0a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFU2444595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287d9b6ee737a474e6c36bd706d146c8f4f4be8866dd304a88f1add68b8b2742. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:02:55Z), 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/QZWFU2444596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a2924ab2ceffc35282743c670c68d298f0fa53da32f50f52f1f9c09982f5c6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFU2444597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104d2d9ec80ce147436ceda5134aa141e6e914937cb04e4bf9eda6e0d14617a9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZWFU2444598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb0e39fe8336d69c1eed8da6997d494938b13c76cce2778acedde2476b03567. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:55:58Z), 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/QZFYZ2589156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f92075faa0f5835f58f81715c5164cc2f03983d127d4245ee91ff05b96a05e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZFYZ2589158.
oh the places i would take you if we werent so close to hell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308e9fb2cc3fb875910f490ebb1999bd5b3341c6415cbc3b16e14bb061586e14. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6H2576937.