The pindu (Stomatepia pindu) is a critically endangered species of cichlid endemic to Lake Barombi Mbo in western Cameroon. Description The normal coloration of the pindu is solid black, lightening w
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 0x873e0ed5c6b0228f82bdcadaa8b04b191d1c08e67c78cfa8c04ddb20c940c79b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa81d8de-e1cf-41d3-85cf-525e813893f4.json and https://artists.proofprofile.net/proofs/artist/aa81d8de-e1cf-41d3-85cf-525e813893f4.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fc17084f12d40159572d40a212ce0b04cfb54e9f3501b3501894ceabb2df63. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:11:12Z), 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/FR96X2070335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbce34a4ea0f6322b4b5284966a018eabf016c499d15f071993e564348d186a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:13Z), 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/FR96X2070339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83de4a8fd99add50aea0c28d76a80582f694317e626dc6193a79fce1acb0c6e6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR96X2070376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718c4a37c059d5c3c7bc7e475680fa49cb74736a3fd4ee1efdc7a68922021697. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:15:09Z), 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/FR96X2070382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5dfebefd0b2d051a906e426a63b70da44570c25399416ae1881f58e5e87b2f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:32:50Z), 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/FR96X2070401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b47d0484123baa236882babcff9601c15c63d58d0186e1af037700a0328d01. 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/ROBRA2400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed60b56a81c478ca927abb9fdd8e3a8ae5d1e6a5fa23928d299f603a437722f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAGD2267787.