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 0x9c687ccadbba21d080ca06cead81549fe31c2e47080fc6d8c236ce5ce1e7fda1. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82a98f56-4893-4973-b98d-ae8485274ac2.json and https://artists.proofprofile.net/proofs/artist/82a98f56-4893-4973-b98d-ae8485274ac2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mashup: Meu Pedaço de Pecado/ Bipolar/ Baby me atende/ Plutão
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 0xd5d7908598d4dc56ed12df3b545b3f168dfa311da18dc0196582fe3d4f17b688. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BCTC62100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8188fed3fd90aceba00f202f0ac4450084ffe00dc3b6a839cbb7cc16611db45d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BCTC62200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfabbeb1e68b44731a83c2509474327d83584afd7116cee553d832949d7d3f6a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:32:01Z), 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/BKNIU2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79750266211de62325e2693684f6e2415eda67950cb49fb33aaa91bd9f12148. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BKNIU2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45e98ac778d732bb78f9ffba45b87c5f6eb472d2cd969cb1bab0bcf4fb2f73c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BKNIU2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13890d62a0ccafb158cba88227b93617357ba4dff936bd8ade3338459e50f108. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BKNIU2400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48350264d1b10af283d01b0d9b47bb788aa38b151f39e713a40797748aa61d9b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BKNIU2400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceea259142bdbe46a1cd532df97eb64459aa6e33b34674596403f92169b4a17e. 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/BKNIU2400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab6828ff37761795f12b9d55ce6a18bf5ea589863b5423fde8da89199d35a9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BKNIU2400122.