Hassan Arsmouk (Berber: ⵃⴰⵙⴰⵏ ⴰⵔⵙⵎⵓⴽ, Arabic: حسن أرسموك; born in 1963) is a Moroccan Amazigh singer who was born in a small Chleuh tribe in Tiznit Province. Biography Hassan Arsmouk was born in 19
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 0xe11bf8a4db738c1a06be92cddec2b3d14a530a79fda90a0fea3d465f0c65aa65. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83dcb789-4d52-4e07-a4cf-96772707ba99.json and https://artists.proofprofile.net/proofs/artist/83dcb789-4d52-4e07-a4cf-96772707ba99.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 0x3596c3bfe18b279933a7538018cd7bcf71a885d410ec095fd47c04d4ee8d9f3f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBSMU9742945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9f47eae678c164c04f6c97b4c695d0880767c16dae1aa3f81b3eafa8809aa0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:52:11Z), 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/GBSMU9742947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e24fcf48e62d63dd4383e845cfbf18192bc99e65d907551735e16f4e5473cfd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBSMU9742837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eae3a6c3d85230f504d1364ce73c934513bf260301cb021803fb10d57589c5. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:00Z), 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/FR10S1673346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803e198186a0cb61e25972107c85da19d7f2772f213c23d15ddbb7b31958a995. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:55:50Z), 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/FR10S1673347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672c375755c1b65e663717d31906e96cc4a76a1731ef4521a56f2a2642c37171. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:00:16Z), 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/FR10S1673348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda7cc7a13ecc1fd9399da5ff2e286d40c518dd51d707c85c6efd6292a2de32f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR10S1674511.