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 0x63bea63797d1d741e32ab2c6069c7f7c9db947b679dddcc42940a40b5fed58fe. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6ada37c-9cf0-4f40-9fb8-0ea3b70d8ec0.json and https://artists.proofprofile.net/proofs/artist/c6ada37c-9cf0-4f40-9fb8-0ea3b70d8ec0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Voodoo Crossing A Tribute To Jimi Hendrix
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 0xb45b22014b815c1a969c00136daea74ced2e1c77a52abd85e2fc4a57282df5b0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR6V80317564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646cd4f99017c6d205568f833b327e737a671a1635177a9c640137281817e6f4. 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/FR6V80317566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca381e3491bcdaff504d10147801ea8db6d9308e7c3796d794f23f50bd98c4ba. 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/FR6V80317568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ea58190339eb479a7ff4346ff17c3e946f040b6cd91a6d8f507a42b7e5c4cb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR6V80317570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a18391f7e3cb35875786b25eaf4ba728995cc5dcdd19bb6d873d164e6a1ceb9. 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/FR6V80317571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9eaae86b8dfc339b36974d762edf97346c98526f02f36412c6e140bc5a8852. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR6V80317572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe947819e7e003154169d0e0c71cc19498a359329216380061df0bf1a4a07eeba. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR6V80317578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14a1558cf0daf56bfb00810bc93b5dbbef2e25f3d00b81554357e979b175c91. 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/CHAAA1708576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340002ed7a7223b9441a5bdcec9688430a2285014b56f402769c723c18fc1da4. 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/CHAAA1708577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb312502e8f0d394641991a99b569197cf465e03ab0064ac0d47f5062505982. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/CHAAA1708578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05faa1f033c582f9c74ec834ba1aea82907318a103bd750a5a218591a794dfb5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CHAAA1708580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ce816873c61c7e6218c494564c0401bc3d49fa535006d5968cd34cf2f8b490. 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/CHAAA1708583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358e28c1dcf3917e993e00e687064524f52a5e565648c33fdeb41f587ac34214. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CHAAA1708584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0130a6e39d44073660e6f2777a9770ae5ee27cc54540db16463cd934b1890ab7. 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/FR6V80318129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb66cbca821f646d77669da0d48c76bce071f292cd407a430c3704f3298dae0e. 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/FR6V80318130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0904fcaf2eb1ed3b0951517c4aed748c0784c77337e21f93066ce2d780c7307a. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FR6V80318132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589861e4b21ffc5085e3d65f6ce50cd80bd8d29555688421526d19db6ddbc2ba. 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/FR6V80532169.