Laurel Hurley (February 14, 1927 – December 6, 2013) was an American soprano performer. She performed a diverse repertoire from musical theatre, operetta and opera, encompassing roles in the lyric sop
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 0x5ca554f7154297f31c658e2c031ed77d9e0dec3b6cb3481743b7f3ccd015d478. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/171397bd-b9a9-40e7-978c-1eaeff02a710.json and https://artists.proofprofile.net/proofs/artist/171397bd-b9a9-40e7-978c-1eaeff02a710.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Offenbach: Les contes d'Hoffmann [Recorded 1956]
Puccini: La bohème & Highlights from Tosca (Live)
Beethoven: Fidelio (Live Recording 1960)
Verdi: Un ballo in maschera (Recorded 1959)
Mussorgsky: Boris Godunov (Sung in English) [Live Recording 1956]
Bellini: I Capuleti e i Montecchi (Live)
The Merry Widow: Opening Chorus / We Are Alone
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 0x18ce1c619650a437fa4c54eb34036ff56ce9b5f50f9a57a5480f633ede31fe0c. 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/GBLGL1230086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa382b3e9848e7387408a2df56a89d1726f62ebfab9abe81f8e41c03cce9450. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBLGL1230090.
La traviata, Act I: "Libiamo ne'lieti" (Brindisi )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a167f6f0f308cdbf754fad476adeae07ff3f5c7432cdae5351d5c99a922547. 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/USX760500017.
Madama Butterfly, Act I: Finale. Duet, "Vogliatemi bene"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2edadeb3cdf1a0f7f29c5690e91847fefbed0e2891669d6708f55b992af0f09. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USZGD1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ae04c73caeaabb70b4a1d6426993411dabe1fe556d247b75178a33a8ca3a8f. 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/USSM11101045.
Fidelio: Act I: Jetzt, Schätzchen, jetzt sind wir allein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb72ce323b61e38bb703952c7b15c443b970148ecac3e93aa816c57637c7a3f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM11101046.
Fidelio: Der arme Jaquino ... O wär' ich schon mit dir vereint
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9534b04619e75d4d3e0773ee96b8c5497f76d7e8d3a33a8d892faa0355574b14. 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/USSM11101047.
Fidelio: Guten Tag, Marzelline, ist Fidelio noch nicht zurückgekommen?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceaed08c3725550fbf87c25967a7ca955333e4a210f54d0eeeadad81f824571. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USSM11101048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09096e3f0ce3b747700e21e334ac4574a8a4a8113da77caf48d566d80a68dce0. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USSM11101049.
Fidelio: Höre, Fidelio - Hat man nicht auch Gold beneben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449930b04db10281a8c5e613eeeb7fa6ed1df9d4a1cfba617e130373db950a31. 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/USSM11101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d5b5c5943ea26fb2d93de124f23419b38c83d4d8ec69f2d2a36c6bb7d3728. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USSM11101052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41320a932825df66fd704ace6486d41f8c0a8696e0c7939f6e1d7715212946fc. 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/USSM11101053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23969ad49955f3dae8ed429ac926e90af7aa7cdafa652dca30d793a4b6288f17. 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/USSM11101055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb44b738f62ffa51f91f97d54c5200bf5ee2acb2f7e82d8815d14908c834e34. 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/USSM11101056.
Fidelio: Abscheulicher! Wo eilst du hin? - Komm, Hoffnung, lass den letzten Stern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ddcbbba4a9dafa9af35817f76c51c46d12a5e267b723a3ef0cc2385268170e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USSM11101058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c0f90be55e853990216f4c5fc4145c733389f5e48773e2d82e3655fc276efe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM11101059.
Mozart: Don Giovanni, K. 527 (Recorded 1959)
Offenbach: Les contes d'Hoffmann (The Tales of Hoffmann) [Recorded 1956]
Die Zauberflote (Sung in English) (1956)
Mozart, W.A.: Zauberflote (Die) [Sung in English] [Opera] (Walter) (1956)
Mozart: Die Zauberflöte, K. 620 (Sung in English) [Recorded 1956]
Giacomo Puccini : La Boheme, Pagine scelte