Sylvia Gwendoline Victoria Fisher (18 April 191025 August 1996) was an Australian operatic soprano whose stage career was made in England, who was especially distinguished in German opera, and who cr
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 0x98341ff297c4b4eed35673610abc96f64471eb0cc694ff93e62ad7606b629791. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4f77e10-3774-4237-a561-62388cbbb3c4.json and https://artists.proofprofile.net/proofs/artist/c4f77e10-3774-4237-a561-62388cbbb3c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Albert Herring, Op. 39 / Act 1: "Stuffy!"
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 0x2d23ba34e298674f5206f632fc70005787bf98992fde674cbd31d664b70f13a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBF076440104.
Albert Herring, Op. 39 / Act 1: "Now Then! Notebook, Florence!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d85c9e59f98680bcdbb28edd3450205804158521e10993fd642c8b3f8ccf63. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF076440105.
Albert Herring, Op. 39 / Act 1: "Is This All You Can Bring?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e48cf6a3f72a719f10ae085f2c97332d3b1e6343ed345ffa9c67d914a3189e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBF076440107.
Albert Herring, Op. 39 / Act 1: "Right! We'll Have Him!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfa356c8a1b347d586e15dc2433f7f96417423d5f3177c010546db52abf4a67. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF076440109.
Albert Herring, Op. 39 / Act 2: "Here They Are, Dears!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63b1174f0e105a2919f8fee2cf480b5a0aa7e57b1b1ab4782e4447bce73d55e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF076440121.
Albert Herring, Op. 39 / Act 1: "Flor-ence! Tell The Midwife!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f90fb04231042e9d971226c4144d28f5bbf5064de5d19b0d545827582a95f98. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBF076440101.
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
Albert Herring, Op. 39 / Act 1: "The First Suggestion On My List"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbc0df1cc4a1e1ae2f023689786985255bc7ca7aac0f7af64007bd22163da17. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBF076440106.
Albert Herring, Op. 39 / Act 1: "Beggin' Your Pardon"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4941f4003207d87a09585ca2c93c8a243bb72b06acb35d94f9f982746aea06d. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBF076440108.