Sheila Arnold (January 15, 1929 – June 12, 1997) was an American politician in the state of Wyoming. She served in the Wyoming House of Representatives as a member of the Democratic Party. She worked
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43a150404b4e317c70f8046cf4444c14557eb467722dbb5d32ad41e3cbd7472. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26221503-52aa-447b-955d-6bccba65160c.json and https://artists.proofprofile.net/proofs/artist/26221503-52aa-447b-955d-6bccba65160c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trois morceaux pour piano: No. 2, D'un jardin claire
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b284d5bb1ad0f34bd7cc7d8a13103a319d7b3b61dcdc5feee4d8b0e0cb2a221. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DER560302518.
Brahms: Variations Op. 9 & Op. 24 - Schumann: Kinderszenen Op. 15
Brahms: Variations Op. 9 & Op. 24: Schumann: Kinderszenen Op. 15
Brahms: Variations on a Theme by Robert Schumann in F-Sharp Minor, Op. 9; Kinderszenen, Op. 15; Variations and Fugue on a Theme by Handel in B-Flat Major, Op. 24
7 Fantasien, Op. 116: No. 2, Intermezzo in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbc36e4fc74e1329a8f5695ade6e4dbed89e6f78221f600496b8bbb856ed121. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/DEN962434908.