Houcine Slaoui (pronounced Husyn Slawi, ; real name Houcine Ben Bouchaïb; 1918–1951)birth 1 janvier 1918 was a Moroccan singer and composer who had a considerable influence on early-modern Moroccan Ch
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 0xc68e8ad786494b64d2fb6b4fc1ccbfe949a5687ce18b7ae1965c905b1b8e51ca. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6aa2dc0-5fe8-421a-93e6-03bf50f48e41.json and https://artists.proofprofile.net/proofs/artist/c6aa2dc0-5fe8-421a-93e6-03bf50f48e41.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 0x2e1220eee4b49b4ff7abc075739514caaa19f8850948ea80fd80391a55bd2c5d. 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/VGA011017550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd996dffb0ac8556eb0ff72fb7e444d760b7a8b79064c5f36e3718cd440fe4e18. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:21Z), 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/VGA011017555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefdb0a7facf20b336ec073a5825e02ab25875193a7cfee9ee84172cb58521fa. 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/VGA011017556.
Best of Houcine Slaoui (20 années de succès)