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 0x3de946c4989d050d505513d9216d3e7a1c99a64e6829d1187b4edbc10159e9f4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62d24d00-8f37-4166-80a3-7d2188709cf7.json and https://artists.proofprofile.net/proofs/artist/62d24d00-8f37-4166-80a3-7d2188709cf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dedo Verde (feat. Menty Ramirez & Richie Selmo)
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 0x34fc47d28db5a324d8c3281e395aed608ad791057532120f584dbd1b909058ff. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:27Z), 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/TCADC1700636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1184f094b3c27d922cc987032790aae38f43126058fde61ba640730e965c56. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCADC1700857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b7cee7a133d0ad77e494284462489f1c2a39362a9554925af9b8f7c8165747. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADC1700911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ceabac5f1abd9486a1766df12a42040699f351c80632a0d5ff06112fe2416. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADB1789364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda55a704c055feb13a6bd81ceccf89da61bf1b65615f701f0ff22a3b7027af3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCADB1789365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc869087166cd241e55b153a3db19a55e7249ee504b939f590504bab5d180d807. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:06:07Z), 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/TCADC1711055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886cdf005773b8d5c6b6ac6ef6ff45b0326427a8e8fe86706971ff8f77c4b90d. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCADW1845991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc282fe879b2ecf889c4d619f1de0c82aa4c6a269c0b63f9563e10a2264dc2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:04Z), 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/TCAGY2344326.