Gnawa Diffusion is an Algerian Gnawa music band based in Grenoble, France.Fashion Tribes, The Times. The group's lead singer, Amazigh (literally meaning 'Free Man' in Tamazight), is the son of the Alg
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 0x3c6aaeb5a4ec368441db3d17b32fb70f60fd50888776a697a764f4f5d9d18f6b. 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/9021220a-70ca-474e-941b-a4932269dcd1.json and https://artists.proofprofile.net/proofs/artist/9021220a-70ca-474e-941b-a4932269dcd1.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 0x0bb2f5257ad293a4c42ac81bd6191c91297e684611069a84db327b5ff3d2dbd2. 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/TCAIQ2446082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cf4d7e4eda35397c425140efc979f2c11e9260163b0b8b409c05ece01bf14b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAIQ2446092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d204ebcd79d666187a5317c8f1ea8c2212d25f08995c6b05916dacc9c62acb9. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCAIQ2446099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6541499d2f338fdb3c75d367a0a11a7bf1cff6a725fab5879e06f33152dd4976. 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/TCAIR2441564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b3014b5916af544c37bbcc55684ac4c02763da8b270a1617ac8c583d3c36ee. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAIQ2441568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3a4283ea2569f97bf871042687e285913cd41d1a4eee3c7d4446a18a674fc5. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAIQ2441593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71d172030d6456f492125d668e81b91ddd3a41017db0f2ed7bad32e275964d0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAIQ2441603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e630ba45bcfda5db14fbcb6059ceacbd4228461425e3c60b4539658188ce5d. 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/TCAIQ2441638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbe14c9ab982bfb32cbe6f2fe79ecabdf946307892bed5c02662522faa01094. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/TCAIQ2441652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ef07a2a3ef247d13ef22de5a211a148088ded275f39d7a099f536f0598248a. 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/TCAIQ2441665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2edfe0c1e50b2f618f1c517bee2de71f1b8aaa8ac1049337058f4dbb334586d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCAIR2441673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a9a3151b4921f6cb9bc647db59a8408a38da08ebdf79120d24b81095bc451a. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAIQ2441679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761fa587f97ca4b244abd81fb6e6aafc1309c5ec6b90d8e320735c91cde5ba15. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR9W12348195.