Doriot Anthony Dwyer (; March 6, 1922 – March 14, 2020) was an American flutist. She was one of the first women to be awarded principal chair for a major U.S. orchestra (following hornist Helen Kotas,
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 0xd006effe2a173d8cbaf846ca630bfad9fb0771f8d64314fa50742da577be0f4c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d225b859-05e3-4e81-a130-45dbb8cbec5b.json and https://artists.proofprofile.net/proofs/artist/d225b859-05e3-4e81-a130-45dbb8cbec5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music For Flute & Strings: Music By Bergsma, Tovey, Villa Lobos & Beach
Prélude à l'après-midi d'un faune, L. 86
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 0xcafd8ee7eab9ee5012bd06b8cd4d1ed4d7df63d947d459b0c8a80c28f5c3b98c. 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/DEF057102070.
Prélude à l'après-midi d'un faune, CD 87a
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafd8ee7eab9ee5012bd06b8cd4d1ed4d7df63d947d459b0c8a80c28f5c3b98c. 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/DEF057102070.