La Cliqua is a French hip hop group from the golden era of French Rap. Its members are Rocca, a bilingual French rapper with Colombian roots, Kohndo (formerly known as Doc Odnok), Daddy Lord C, Egosys
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 0xf44a205f76a6d390afe6d178eebbc52e6038ed661e59466d318ce6b5a9a4deb9. 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/8e22d161-3628-4538-af9d-edc21d9c1978.json and https://artists.proofprofile.net/proofs/artist/8e22d161-3628-4538-af9d-edc21d9c1978.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 0x867d1bd554beac7bb935d57f44b2f39e229865bff17a7068bdb6a4365f523135. 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/FR0U91200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf239c1752f0b43172470b01a1e7d1b4e2c683fc7e4ddd92357a684549f1f039a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR0U91200648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce66428dbd95ffd17d8fd32bf8fa5f09af777994c5188e98fe96ac6912de9954. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR0U91200649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3531fff10c9e9c9e44a81048843efc5a61b329c62eddecac017daec7e058feb3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:52Z), 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/FR0U91200651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf444cba2d8a08d5b6ea3c636f074ac33b40744372ac6f1b446b4bf607ac83777. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FRU090900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1170756020957123bb25d9526c7d4d34866308a12868f81588d7adb89df65ffc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:51Z), 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/FRU090900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed12af4bd27a7e6def31f8671451d2b39517a18723b2f4cf6513f24b02a16f59. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRU090900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49feec7ddd4d3a4e3206b41cbf6460b208ed2c8d981a9eb09b4359eda5c69f3e. 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/FRU090900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2b079fe9d7855aea26b9e23945d357504f9207c143cdef541248bab9faca4b. 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/FR6V80834398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31c780d1a26742bc483bffc56e770b3127746fbad4e0761c60e2776dbc034be. 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/FR6V80834009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf3f5d66ab4944e5c6ad1e9377aede5deb9a5407823327975ece0a7761e47c2. 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/FRZ110801002.
La Cliqua (Double H Production présente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9770b464264493e4f19f4072d759a26ba7b0b952fb52a22f86dad9ddd30bfd7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR6V82196298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6ba0f8a8c8b36d53b85a728b7ce869706b620c71fe747a73472f48c239f969. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR6V82196305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6027f3d6c1e0fc44fedf641e402cfdee698e56e8d22f6e69d1f7990443b5e1. 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/FR6V82196318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa653c93dab554ce5722833f764bf6cbcec8469433dc9291d88422b75785f9d1a. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FR6V82196301.
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 0xcb63893f6c7d6a11eaaf74299ac62de40bdd326ad047de902fd85e52a75dd595. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR6V82196310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f394e552b5e271fc9c264e27082075ab9b12037dc0513e510a3bf148747198. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR6V82196311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467297870402be1e54cbf5d20d3379129af7f1c620d2ee961eae1e2f8e1a2745. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6V81769660.