Mamady Keïta (August 1950 – 21 June 2021) was a Guinean drummer who specialized in the djembe. He was also the founder of the Tam Tam Mandingue school of drumming. He was a member of the Manding ethni
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 0xcbca866c371248b8535b6982f5c067d42d1947790e2c54e9adeb36ca5e7719f2. 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/1207df1d-29cf-424d-8a62-024cddaf7313.json and https://artists.proofprofile.net/proofs/artist/1207df1d-29cf-424d-8a62-024cddaf7313.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 0x4e5dbc7352057974d9b00f450306802bcb46962546863cfad622fab0fea238e8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/MXD781804094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08875a2b450fb122db399de6884fb8b0945f7eb1b8a9a93632a8cf9fc4ed000c. 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/MXD781804095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea66d2ad6c3bcffbcc3c55b9d8dbd2c5f73c1b36ef039d0d99dfaa011501bfa. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXD781804096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde69cc351ab81cd426fca6b53c7c25b6ed84ac89a43bfb8f6f7199cb2474b235. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/MXD781804097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5344ce88f0701275106ace73cfd463e527099597b9af4eeaf7dd12ed2a2b17a3. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/MXD781804100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9618298d8a1b31081ccb1f0269350bbff2af555f933c6cf4a5264689f6833aaa. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MXD781804102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a187c0728932f7b62783e3025adbf74f8be071c9ff48d444c3b0faf314f8dd. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/MXD781804104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd610c92d2d5c5d916f5d76ea2f2b7f10d1fc849e3f827db451c0f44b5986f92. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/MXD781804099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bec64dcec9f2e250c6d8e870ad743b0f29694ce8910c0e45429d369e45f50b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/MXD781804126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c557a41562b3ba1fc37be8731251c55f5d15e0efe21a569a84f86cf85befefa. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/MXD781804135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a510f16f562e93dbf2cf614b195c19c72c73ea8ca03bad4791afb2cc6db068. 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/MXD781804131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ca0ca2de1720ab6d433659c7cf3432ab4076418b241396f59deced3ea7afce. 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/MXD781804133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2711caeae804196ba50d517fbc00502908c250dcd33a5f8006e413e5257005f5. 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/MXD781804209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e7f36a5833e496b39083cdc47baa66bccd27e2ef167835abd50fcf14ce1b6b. 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/MXD781804314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd83323b14b26f01032d32188c7db2f69a53650a6b16d1a399aa40a10a6e3f1. 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/MXD781804317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353957e0a1190611aa35de5bde39fdbbb23c4d3c5bd2784b258bc5f3837409fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUZG00935420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc611a9ecceea28603936d3db8f5ea45c7f6539a99a81bbb868cdec248df79bd6. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/MXD781804291.
Mamady Keita & Sewa Kan Live @ Couleur Cafe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f4c1acc6e6605bcb994f64ddfeb028329e1e2ceb0aa1f95fa14ded6a30bb4f. 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/AUZG00719105.