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 0xf1880145289beebe2bb74e4dbb2a816182468e1e4679276c4bbb5ae661f3b562. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a90d8995-10d6-409b-a59f-1499e50483df.json and https://artists.proofprofile.net/proofs/artist/a90d8995-10d6-409b-a59f-1499e50483df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Subconscious. Creature. Vermin. Mephistopheles.
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 0x46ddf3280439eb5cf10481bd47b6ef8edd6b638992d838a9f91bc3fb1d122223. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/KSA012332864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3da8c02f1094d9fda8a52731df8d08b64194aa12fcf52825774bdd67e31d6e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KSA012332870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50172d0f79bf7d6af9efa363ee15d86b3feac5fc6ef7773ccc7869b79a28e2b7. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:17Z), 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/KSA012332871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424287e06645dbba1cb9313a1dce8a3905fd022e699bbb435be0510d62c8dee. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KSA012332874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1302ab63a4e965ddcacbbdaa5868e8164627a5d326aea33c6b31972967b69dfd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:32Z), 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/KSA012332882.