Achik is a surname. Notable people with the surname include: Abdelhak Achik (born 1959), Moroccan boxer Mohammed Achik (born 1965), Moroccan boxer
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 0x9f4ed74d9c853d483517c8932f86b66f5604a37c209aed9eb27e926a03d535aa. 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/dff4e449-52ac-4bba-9c56-e01cca1970cc.json and https://artists.proofprofile.net/proofs/artist/dff4e449-52ac-4bba-9c56-e01cca1970cc.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 0xf5410614c1a3c00638a1d1b45bc5bb6e8be7da44d7f19de13b14a51540e24c63. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/MYHV11000643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfe0c2bf99e8d64913f1f005d2f0efe06f57b8c7335a8c6d966813ec4aa04ed. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FRX871510540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5729f500b11377971d61a7ae12194f9f2a44fb6e5f744a1288c2ea78c3637. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FRX761594704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be0c2348aa5a1f56ea2a86066d9a4ba2f97e0dd035ed3406b03b93a75b75c9. 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/FRX761594708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ab2f6a7a4e82f3e98de2f9436dcaf1c2f48d410983b357d5fd96d47a6e86ad. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRX761594709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a4fd5531debf7fca9650987ab1163e5da63bd0cbf58d0e9212003aa7b0bba. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FRX761594710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9f0c72e870e8edb37e6d0c1907b4b612e68c3e8bb3fb8a2bdb4deae0635a5c. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FR10S1614815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa422bc790aa6bbf3a1752edad69388fe5e5aebd8b4443ca29b901bb820079f96. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR10S1614816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bda4a8dc57b607f901d2151ba3233ff27b9b3f7cc9e423e093263be6d075a52. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR10S1615823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6507e348edc5e18cb1ce8795c941dcd12b0a37208b101b05ee2136f4b83aca2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR10S1615682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47728b885593733e49bf3c8a58c5da1b28d60ff0cb88563f142811c361a91c4d. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/FRX201776286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d17165707f27916e6456822587624e6fae95520d3c0302ce3ab4c787b57f2f. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/FRX201776289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c02881e08ee4ead8a776f8a33b7905b02a2e925f167713bf64d67d54dd13475. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/TCAHH2360500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea4e51b09cda9da05c4f8f8030790aebb6b13d4865fd8df5eee6c1ba43549d4. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QMDA62402332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe216b0ff3a6e388fe0e21a42b4730c3247a33bf4b85e1530223574bee28264cb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMDA72440529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a71b6c0daf50c411b38369da0601a73bfca5c26bc5ae07901d2db5ee3c6812. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QM4TX2561244.