Jok'Air, pseudonym of Melvin Félix Aka (born 23 September 1991 in Paris), is a French rapper of Ivorian descent. He was part of the hip hop collective MZ until 2016, before starting a solo career. B
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 0x7e0fb96069c82b325914f08acdd1f11ee4e0c81355a346540f0347c0900c825f. 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/ebc7b846-9c67-41a3-8074-023d1738dcac.json and https://artists.proofprofile.net/proofs/artist/ebc7b846-9c67-41a3-8074-023d1738dcac.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 0xe2ee10e5ef08f0a8b69f90d714841bb8c1721dc1d7bc20658193bf50aa2c52cf. 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/FR8FB2308110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04f549d827fb8b7eb4e5d254004b93bb597f2553e6c1a485412f8a16b18b566. 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/FR8FB2008520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eaef44bdb1187117cebcd3373e095aecbfe23789cabeb314bea50ab2133bfa9. 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/FR91X2021300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe0ea5f23aa694447d2a4373fedd70a285193da016ccd47b62de1f10fb138cf. 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/QM2PV1733793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb0f7cde367fd5b6b0737225e0d2065846fa9c65a353433aed050f851c98a66. 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/FR9W12003260.
High & Fines Herbes La Mixtape - Volume 2 - Saison 4. Parce qu’on n’a pas fait de mixtape pour les deux premières saisons. Ok, c’est pas très logique, mais on-s’en-bat-les-couilles, le projet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10724efcb080e33ee523553849b77a1df2c49d20f31f546fea23e1f61fb25abe. 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/BEEO72300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed4d507be808814f67f482c579a30f9e60132d096a3df52f2379f7f56f0d982. 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/FR7X62400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2831c0bb956b2d8d8c806fbea05d6137bc34d8dfc86d8e8d8c80d9278bf2317b. 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/FRX201802692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2bb610b1808eb696d84fc85b0c11b6538dc30ece2a5585788bd97adb00837b. 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/FR8FB2308020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f96f90d6ceba9b6ef517d63c6d35591c533ddd9bdcc5f81a76c485147d7d4e4. 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/FR8FB2308030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe0ea5f23aa694447d2a4373fedd70a285193da016ccd47b62de1f10fb138cf. 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/QM2PV1733793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ed33b16322afb44249a9e4c5bcf1d597d2bf12d2697ef5bd1915b2696a538a. 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/FR10S1828104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10724efcb080e33ee523553849b77a1df2c49d20f31f546fea23e1f61fb25abe. 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/BEEO72300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e74b0cac4dbf2135621eed35153c5d9f7993cf778ce6cb452fa455ee56a0cc3. 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/FRIDO2211766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68b472ba281af78b2ad7919767ed834493e6d70eb0abf972fc4270a54cd35c8. 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/FR9W12126959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68b472ba281af78b2ad7919767ed834493e6d70eb0abf972fc4270a54cd35c8. 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/FR9W12126959.