thumb|Abdelwahab Doukkali (2013) Abdelwahab Doukkali (; born 2 January 1941) is a Moroccan composer and performer. He was born in Fes, one of the 13 children of a conservative family. At the age of 18
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 0x219712071944c29f3d7560c48ecbf626af76d7beed53e4c8f99a1698c3109108. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83ffd81b-f55b-4612-a9a7-0fbc9cd9a4fb.json and https://artists.proofprofile.net/proofs/artist/83ffd81b-f55b-4612-a9a7-0fbc9cd9a4fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Souk el Bachariah, Le souk de l'Humanité
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 0x47b4fcba1df7003ad6d4f8700f5f8036bd47f87bf4feecf809278d3c178f7da9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:20Z), 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/FR0O70794605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af120d50f28e392e3994466360457e4f778c616da6ed7a1d14864a34b741009. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/FR43D2200619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54baa3ab7e67a2f29d1ef84e896b5d202e4110695a5b9b29d52c75fd4a15e82d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR43D2200621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f77436e31a38524541f11fd4363f37c6e2d05245e8bf8a9dc3fe0e73ca4471. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/FR43D1711930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47809652c481ae45f6f74111e964c1a183ac8402fa85a15793eca5dc504c97b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MAA051300682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa42d4a1a94132d6c18d7fdaedd5c6588aebe9cacdd35832d0b324fe6e1fa30e. 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/MAA051300683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fee086faef6f289359f8e08ae962e30a1ed9df340a6068fdd42b29fa2e89b2. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/FR6V81654794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e8326444236409d5e8ab4813431d84d74822302154079f3a58d02464b7f68e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V81654795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c9aa356584818380ef38883e591e6a65cf66c554569357e6766ab1d080ff1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR6V81654796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a514a874d014a396c10347f412e73caf0e880527c57f37d5728664a00c0f11. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR6V81654797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7728fc4c3eb526212b1e842de4faae469bdf45d22e8aa4f2ad3392e01e57718. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6N21493848.