Nesrine is a given name. Notable people with the name include: Nesrine Ben Kahia (born 1986), Tunisian table tennis player Nesrine Daoula (born 1990), Tunisian handball player Nesrine Hamza (born 199
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 0xfaf4329f0ee7bb70a5a3be5cda42ab1c8bb69bfb130439e9e8d98918de5385a6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62ad79cf-d0ba-4483-8215-3217c66e63ad.json and https://artists.proofprofile.net/proofs/artist/62ad79cf-d0ba-4483-8215-3217c66e63ad.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55808938606ee0c61cd4a15794b7f8469a9ebec72c21f8e5ced2cce75034f3a6. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/DEA892000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaf2bb96fae16cce28597f3f15113a1e1cbe1032755fa94a4c53be55d738fb4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2Z31100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945300ba33ac5d12edf861f2ff69b2037ebf3f645e69666807419398078e4dc4. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FR2Z31100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb200fb59e5be9b379e8fb389f88073f1f44f60c5bbe955d8b37ccd3327721. 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/FR2Z31100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b65745b3f76bc0a0357e7cbcc0744f796d62e55209513ccb6094ad1dbe43534. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR2Z31100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6427821b914c651979cb42bdfc9890b54789d073d8bca407cb1149d8538cb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:33:59Z), 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/FR2Z31100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d78dbd24ad5d4729b8d085906a24300c3c469de7c5dde3401655a9e689893a2. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR2Z31100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb960af4709d39166904761239784f36caaa3f5f92c4ccfdb1c06afc3d9eb6eb5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2Z31100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528aa56ddeb2a926cc7e24824bafbbd1b935a0badadc2343b15fc226075ecdee. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR2Z31100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ee6078d4c831bed9716bffa894f3ece3f1015d20328a72b3c27a5c9e654e4. 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/FR2Z31100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bbb5392977f765961c8b20baa1052815fcb56c17846affd76aa3c40fe764dd. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:24Z), 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/FR2Z31100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b9e9a84f47cc6c44277d8913b4eee3f724f37da13a5813fc13a904940c421. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA892200343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85095b20a3ab489e481cc531108403dcb810fa8c50284220bbc34d92bc389ed. 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/DEA892200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1f0f44ba43c65b3832786d3b2e3d4928e6b8f998624bc17dc796ee2fd62b18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEA892200354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3151c826eb9685a9187870032f1c979e5a36462e2ac7ff856add4abde105e679. 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/DEA892200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb091d8ff7e21e49b618a1308339adaa28cd3269247d1b51a47199c3d56a9906c. 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/DEA892100080.