thumb| Gilbert Py (9 December 1933 – 9 October 2021)Le ténor dramatique Gilbert Py nous a quittés was a French tenor. The power of his voice ranks him among the heroic tenors, the fullest and most p
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 0xb87c9daa9d8a5eecdfe9a1525004416a967d66aeac52893f7043ad83f69eb72f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7086206-4247-40f5-ace8-87f3d1da5a29.json and https://artists.proofprofile.net/proofs/artist/a7086206-4247-40f5-ace8-87f3d1da5a29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bizet: Carmen, WD 31, Act 1: "La cloche a sonné" (Don José, Carmen, Chœur)
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 0x5a8a439336204115a71578d92c5b41680d1c00acf2081ba75cbc827cebb64e3b. 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/FRZ207401005.
Bizet: Carmen, WD 31, Act 1: "Parle-moi de ma mère !" (Don José, Micaëla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840b71119abf1184b545fd8491e16b53e0b96439ff8067ba654d713d9b5e3962. 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/FRZ207401009.
Bizet: Carmen, WD 31, Act 2: "La fleur que tu m'avais jetée" (Don José)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6793db68b994ea1f75f78ab4f8e52153b7498f6423cc6d97a2f8c24358504ef. 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/FRZ207401028.
Bizet: Carmen, WD 31, Act 2: "Non, tu ne m'aimes pas !" (Carmen, Don José)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c02730ff468ca0c8b90ca5340aa05d93174b6a6dcb10741bc3a8fec94b688d. 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/FRZ207401029.
Bizet: Carmen, WD 31, Act 3: "Écoute, compagnon" (Chœur, Carmen, Micaëla, Don José, Escamillo, Mercédès, Frasquita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c029793e3fbaf1522e295d1e40216e91e626eb6252e0048cbd77b0c641a6d6c. 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/FRZ207401032.
Bizet: Carmen, WD 31, Act 3: "Reposons-nous une heure" (Carmen, Don José, Le Dancaïre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6fb747d9574f70a6df2f2a124dedebf0e7f2f7f8c227e5e096d522da15dcc. 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/FRZ207401033.
Bizet: Carmen, WD 31, Act 4: "C'est toi, c'est moi" (Carmen, Don José, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2914c862d26e5702c01dc1ccaf6023b0d24609e111d06c1f4338e0eff738b7d2. 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/FRZ207401044.
Bizet: Carmen, WD 31, Act 1: "C'est bien là, n'est-ce pas" (Don José, Zuniga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372d53a80b9693e61cf4302536026e021ba7b7089680acfc3d58ebd7d2613f43. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRZ207401004.
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
Bizet: Carmen, WD 31, Act 1: "Quels regards, quelle effronterie" (Don José, Micaëla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd8a2c97e42addd8220de9039ef77439aa9b70cf96fb8d98291897974f443c2. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FRZ207401008.
Bizet: Carmen, WD 31, Act 1: "Reste là, maintenant pendant que je lirai" (Don José, Micaëla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc63ba8013a1ce6862c9905a715d26bb1f26a35f007efdaaff91e31372a8819. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ207401010.
Bizet: Carmen, WD 31, Act 1: "Au secours ! C'est la Carmencita !" (Don José, Zuniga, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f609a8829f300fd6babcb4f40af659bca842b331d76f910099ce527c690559. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ207401011.
Bizet: Carmen, WD 31, Act 1: "Où me conduirez-vous ?" (Carmen, Don José)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e054c6e671a8d200eea741eff0d5af40db68aaddd6c700c604df4671acc5a2b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FRZ207401014.
Bizet: Carmen, WD 31, Act 2: "Halte là ! Qui va là ?" (Carmen, Don José, Frasquita, Mercédès, Le Dancaïre, Le Remendado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d97ffb6af287556a74a4236ab7a8605a8d2b0ec82060d030866154b9d61b38a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRZ207401025.
Bizet: Carmen, WD 31, Act 2: "Enfin c'est toi !" (Carmen, Don José)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c17a37fd39299d46e8456358a122136642701515ffd232e3b38ab03f39cc7c. 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/FRZ207401026.
Bizet: Carmen, WD 31, Act 2: "Attends un peu, Carmen" (Don José, Carmen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6897abb0cd6804faee4dfd0685475c8ec2260ae330c5e8e39db71cc08cdeb5. 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/FRZ207401027.
Bizet: Carmen, WD 31, Act 3 "Holà, José..." (Carmen, Escamillo, Le Dancaïre, Don José, Le Remendado, Micaëla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c24c501bc8c9c9eab728460b24802a470c6b22fc1a62ad03006759b7ae6001. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/FRZ207401040.