Bachir Baccour (born 19 May 1979), better known by his stage name Tunisiano, is a Tunisian rapper living in France. Prior to pursuing a solo career, he was a member of M, Sniper and other rap groups.
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 0x1073af76d7037fc28e1de6fc80627f3248b3532baafa9edd45329019839e8b56. 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/f48f29f2-8224-4926-841b-9fa3b10e52df.json and https://artists.proofprofile.net/proofs/artist/f48f29f2-8224-4926-841b-9fa3b10e52df.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 0x17b087a4e790375bd0a13790d97d7e0e6905b83af451c2fd6b128927fd33b381. 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/FRX762125244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2a5eaaed3a3ad371e4196ba897f32781aff14a4b90d3c6a43fb4c05f398a6d. 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/DEBL60950470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12af42788aeac4b8b66bd6d7a02582ed285601298d1930b844159b1f69da535. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FR0U91400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf520ece3325fcaf745f4c01ff221f3a4875f176114f5cf77c719d0073587b421. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR8GV1848420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb498ee19fbd5b0c5ff875e418670d90ac5ff5433ad3a92c9e3199ca0f3c6fe3c. 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/FR6V80371630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6113764d2aa46fe26aa2b53e8ee98821440bfc9e0552364c0cb59213899bb7. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/FRPET2402460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d67d2083d68d92b841cff40249c3b6dea351e0c65249acfbaf11eb12cfcb76c. 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/FRPET2402430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fa7796e9c438b53140171b9af7218e50b93744ef310d2eb6118e5089333b4f. 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/FRPET2402440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83602b7d78e1361215531d68b18034f79834072c34c44c23a6972c975daff96. 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/FRPET2402450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06faa9690ad18a0d012e0113b284ee9584c5d50e94e41034862740e7b66d4c45. 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/FRPET2302200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe8fee0e900739a1228effc29c21c75818db3fc274c64ab0d453603851d4bcb. 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/FRPET2101740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d84caff7cf74ff8efcbe0fd20821bf94f7e3704c25ad848511bfd0a6f9e4a6. 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/FRPET2302220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0ff7e1de3a28dffbf40e6651c768dda7ce70ab95ecf266250264320e34cc55. 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/FRPET2101750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a793096ed3dc00f740d6eebebb0392b7682bf55045edf4490b1dc81f1c3d9f4. 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/FRPET2302210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6113764d2aa46fe26aa2b53e8ee98821440bfc9e0552364c0cb59213899bb7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRPET2402460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7342d3acf59a1ba39415c4ac04396a85b08f0a3434b6560e7bf47996ef93d7d1. 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/FRPET2402470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9201f3f3d652fbf0aab5a9fd37187f395192f28748b57e44abe7b80bd5370891. 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/FRPET2402480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ab49d0c1e06ab4ef5e3eb2415aabd581f2652b99c3354f384cea111dc4f8c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR0U91200379.