Holly Mathieson (born 28 May 1981 in Dunedin) is a New Zealand conductor and music academic. Education and early life Mathieson completed her BMus (hons) in composition and analysis from the Universi
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 0xeb16e6eda0630675fe9a7f7a778e2830d929ca39a01ef20e5cbe5d256e618055. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d75d5d2-2317-4ea1-a35c-3b85a147730b.json and https://artists.proofprofile.net/proofs/artist/1d75d5d2-2317-4ea1-a35c-3b85a147730b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Concerto in A Minor, Op. 7: I. Allegro maestoso
Romance – The Piano Music of Clara Schumann
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 0xf3345fceb922a2658a613bfe0ffc7cf1567c2775083b9bfe99f494ace988d07a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF071900301.
Piano Concerto in A Minor, Op. 7: II. Romance. Andante non troppo con grazia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef3297c75ce55ab3938fa10822f0d58d127178e364ac287e1840140989d6595. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBF071900302.
Piano Concerto in A Minor, Op. 7: III. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109395d738d6ca07bbc8b4b2cb525494dd0dd5db9d7a0a64e30827a25c6f5267. 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/GBF071900303.