Zerene is a genus of butterflies in the family Pieridae commonly called dogfaces. The closest living relative is the genus Colias.Brower, Andrew V.Z. (2006): Tree of Life Web Project - Coliadinae. Ver
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 0x852c5c9a1d1fd5eac20fb487391818a6d1397f3cb00f3470eb8f6b1c3e05e862. 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/82ecde9c-ddca-4f5b-9e5c-0cb917a94595.json and https://artists.proofprofile.net/proofs/artist/82ecde9c-ddca-4f5b-9e5c-0cb917a94595.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 0x3b043d376a6bbb4751c382b527cfcdd0a856d3ab45de3f970280d5c62e01185f. 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/QMBZ91748014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c33a63b09e17eb8bc977bdb2afc8b82073dea454208158d57fda715d6aa6cb. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6P41826661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2def5e30df6e824c24f521f275bad5a356527fe3ebdc71db9befc68870be0cc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:59Z), 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/GBMA22103645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72f1ff7f3b675be2332e1d967bdf2870cac19faa7ce3f3aa31c082151513fa. 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/GBLFP2095793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f64a0df76c9f502b38119b744ee91136398984595369e9517675c934093b068. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBLFP2014136.