Djelimady Tounkara is a Malian musician and one of the foremost guitarists in Africa. Life and career Born in the culturally rich town of Kita, west of the Malian capital, Bamako, Djelimady grew up s
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 0x7b687eb420c126e65b48852116823828039a3d3b6c5cb141945225bfeb297ef4. 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/f82c699e-7021-4ad2-b866-b3a517c236be.json and https://artists.proofprofile.net/proofs/artist/f82c699e-7021-4ad2-b866-b3a517c236be.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 0x21aaea1de6d19fd9991b3204c7267597d864cf400df51ec3f0107cd0d9e7f799. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR1F30000660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e7459a78f767e6e9786be189f6bae5ad79f89cef66a89b63780ffd3decd9bb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR35Z0400026.
Allo Bamako (Malian Dance Music of the 70's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad69741d3974cad769419096895c4e9ff930a402246429bae7e4ca6ed5b72990. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/FR1JK0700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26fc5e97623b6f841d90053b9da9429597dd2d896c84eff022a71f065e47d05. 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/FR1F31400340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8ce730ce420d9ce687b129a152a4bde6e2a3cf5881c9f36ceac2486ea2d66c. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FR1F31400360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0547e6dae2c4d258e3877ebb87903d3d159a59109f93c88df0d335f1bda917. 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/FR1F31400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f57c826b8de41f4be1ceb0ddd6f8a01af64f9d805c80e76d3d467efa9b2e33e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZH5R2000263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aaea1de6d19fd9991b3204c7267597d864cf400df51ec3f0107cd0d9e7f799. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR1F30000660.