Christiane Eda-Pierre (24 March 1932 – 6 September 2020) was a French coloratura soprano of Martinican origin,Alain Pâris. Dictionnaire des interprètes et de l’interprétation musicale au XX siècle. Éd
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 0xb885754370a8146dd27cb31dc8a70085f91cd18693ca7109aaf72112723d4246. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbfab949-8921-4464-b79f-b862f0e997f5.json and https://artists.proofprofile.net/proofs/artist/cbfab949-8921-4464-b79f-b862f0e997f5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x5b2faf44383844d2c4852b5094754bc7c7a658c99f6dec84a5f23c0ce9c64304. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507200875 — a six-check JSON result.
Mozart: Complete Edition Vol.12: Arias, Lieder etc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7db8ee29cf0d251813f630c87d37d0f59b6291207f58d0273de0a68a2b5ac16. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057902060 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45f68a97324492671bb943c2e8f2dd9aa5d8b4d06c1c356b2375ae9fcdc37d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104250 — a six-check JSON result.
Or che il dover... Tali e cotanti sono, K.36
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123d805dc9bf7a524dc19654685b90407f71da1ce3c1c2381efef0aecd99b366. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057902070 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c8f5474f9a4781a5dbee500f8c0c3224bd3b5d9a34c871f6223df7d330a40. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058002580 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd18412d71bb0000295aa85181e7294dd50a2c91bfbd1885109cbd9a89a59c8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104390 — a six-check JSON result.
Mozart: Die Entführung aus dem Serail (Complete Mozart Edition)
Die Entführung aus dem Serail, K.384: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340f6cf4c08171d0115688918074aea0a73c254b7e2278311c4ce1dfc41bce35. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804901 — a six-check JSON result.
Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1defad7425a02e55378311149e09e1a1dc362f1c3db175c63b844bcb559a25. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804935 — a six-check JSON result.
Flower Duet - The World's Most Beautiful Duets
Lakmé / Act 1: Viens, Mallika, ... Dôme épais (Flower Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eecc78ad97c71520dff62bd596e24b914d586a86addaad7f117a41f0ae69c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076711260 — a six-check JSON result.
Les Contes d'Hoffmann / Act 2: "Belle nuit, ô nuit d'amour"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f31efd0c2bb7e0d4e54cddeb6192001b07c58cebf3c3cb68034c88b9a93c97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110650 — a six-check JSON result.
Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcf6767de4890707adb72fa60c6f488d098286f9af014769983f729e29f5f63. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077811640 — a six-check JSON result.
Semiramide / Act 1: Alle più calde immagini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3370d879a583c9a02a25fcb4a74bfe570ee2eb0167b47205e7c21dbb9f6774e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540617 — a six-check JSON result.
Béatrice et Bénédict / Act 1: "Vous soupirez, madame?" - "Nuit paisible et sereine!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1db5b6f203ed9aaa0bb551a0e5efa5d5de63f829c56c5c1f516dd5bc8d7b1a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507521014 — a six-check JSON result.
Rodelinda, HWV 19 - Ed. Bonynge / Act 2: "Io t'abbraccio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9521f556350e0e72b8dbddcffe469e26c87bdec82923d0225e5d9477970ab70. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078541722 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bba6a9e1e4615242d08679ea3ed6ff12999152a363bf4faf29b29ad82160110. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076741607 — a six-check JSON result.
Norma / Act 2: Mira, O Norma...Si, fino all'ore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67d71e2305286e50942c9752d2112aec52ffc65f2b3c5fae1d3b42cb7d5c829. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6451130 — a six-check JSON result.
Mozart: Complete Edition Box 16: German Operas
Mozart: Arias, Vocal Ensembles & Canons - Vol.2 (Complete Mozart Edition)