Nâdiya (born Nadia Zighem on 19 June 1973) is a French R&B singer. Early life Nâdiya was born in the city of Tours, France in Algerian descent family.Françoise-Marie Santucci, « Ça roule, ma soul »
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 0x70d0621aa09531454b22020a54394d0c3aa5ba9e5f05db73af03328aeed2c525. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ff51f98-9899-4fc1-b59d-4366664fa4f7.json and https://artists.proofprofile.net/proofs/artist/2ff51f98-9899-4fc1-b59d-4366664fa4f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb5d0c65b1378820cea4b7d773632fef1ea9b729103b5d8fb29738d9515909272. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRZ080400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32119b95938a72c181971302506946a0beb92026e6668200c528d0623b6a5f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRZ080400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735f00cc25d3be6ac9b4eae9d19201675e27217da0eda7ac253a154b90190ee6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRZ080400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeed35e4e4ca4d401fb85f0dbbc60d7a61823a1199c944b1a94115fb86b97ca1. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ080101630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30defd9479ebc3ad3dbeb3ab82fee09b329f45aaca2ef193c37dc6be984e9de. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRZ080400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d4297cd57770c5a677f837eac77fa6f88ae007be0b02515141ef24cebc13e2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ080400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3c90943950c4dce6436d239243e2146c750bef6afe2d568cb748c27a67db07. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/FRZ080400098.
Et C'est Parti ... (feat. Smartzee) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613d852ce705b9b93b9ecc3104da8e24fc4d173c51e2063ee15ad7d5080c745b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRZ080400106.
Tous Ces Mots (feat. Smartzee) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44946c2a2d91a62b0c1fea8aee119338934e599e3195443a96bbb4d81ed2923. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FRZ080400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613d852ce705b9b93b9ecc3104da8e24fc4d173c51e2063ee15ad7d5080c745b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRZ080400106.
Tous Ces Mots (feat. Smartzee) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c678b60a240326df03d7e10b6a29b4654bd9de6b85684087d697dd422de24b6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRZ050500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9894a9dc0d8fee59ce333db690ec58d9827da805826e4b78a154539b029a09b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514a3243c2e3a2c3a853a9e24b15dca1459275e1f42be6e39c2f5ef260a46a30. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:02:14Z), 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/FRZ050600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0825163b06ef9fde63fc6b60b1c10df21bd07fd61a8cc3a574c33ce74c3d528f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5803c74a5e38fcff849239b39396903499c9ec64504cb36f4f75d8a0be8d2831. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ050600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d10ce41d8dbdd3ab2407cdc0b28845ad04bffc65994ba8276570571782faf7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9cda7041c3bf31a6a9087d0aff356c24b0a8959102ecae33f3a2b28b98a5c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ050600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17ee1d088b57e9e4c433220042d05f89ccf19bdc4757927e446293768596edd. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050700804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2c92121a4635955c26ad83e68808653428befd9a4374e81589b397c3f4f0fd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRZ050600493.
Et C'est Parti (feat. Smartzee) - Extended version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab177d7640c61b5a918544d7ecbbfdf1cbbb49307eacff5b93a0a306176dd315. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRZ050700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9894a9dc0d8fee59ce333db690ec58d9827da805826e4b78a154539b029a09b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ050600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376d1d751c3ac4a9f1b8138d41adf93603f5a95ea1e27522fa583f7c73900081. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRZ080802088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9d165a8a4668616a943585db8665c58cf8a047b1caf4caa1ff4d63bb60c32e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FXR802500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf48a84b46853070921a898a8f18ab41a6e116e4377b3ccd3270a9d17e364a2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ080802049.
Lady Marmelade (Voulez-vous coucher avec moi ce Soir?) - Version chorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412d3f7f512ea87943ef2b1fd564520b51a49be27db72b954c334fac94a9f9e8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FRZ080500166.