Joni may refer to: Given name Joni Anwar (born 1981), Thai singer and actor Joni Eareckson Tada (born 1949), American author and Christian ministry founder Joni Ernst (born 1970), American senator fr
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 0x80c1dec5c09bf78cf51c85d405d745335815923dd304b08d4d379ec1d79243ca. 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/9801c81a-d458-4e10-9703-af1a16d399ff.json and https://artists.proofprofile.net/proofs/artist/9801c81a-d458-4e10-9703-af1a16d399ff.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 0xacf816a6dea27d4a68733cd940900be4f95a8995543e40d88a2daf107acadee1. 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/QM24S1828851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030058d09daceaf44b50bff95a2f1ee41c02142088baf0ee9ee5f543eff52c60. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZK6N2095771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8178d5d668a41a7acab011e8f52d6ef982ed4bea16fd9af63fdf642d2330e2. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZK6J2083023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d22f794546e04c3536d6746de5e4bc751be958a65bda66c002944a66366b7c. 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/QZEPW1907303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12abe000b7cfd4d24d58fd951f0447523b5e889fade4e756a658d13135000db. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZTB22358371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12abe000b7cfd4d24d58fd951f0447523b5e889fade4e756a658d13135000db. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZTB22358371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f83248ca8cb2964c0e6d6949a3effb8c328aa04cd97e7d591c3c59170a041. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZEPW1907302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12abe000b7cfd4d24d58fd951f0447523b5e889fade4e756a658d13135000db. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZTB22358371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d22f794546e04c3536d6746de5e4bc751be958a65bda66c002944a66366b7c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZEPW1907303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff326ca3cf5eacb1033013ea146a35a2ddb52e0a69bc7a86837149cc008de26. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZEPW1907305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93da382de8d94a01784a17e26e7c31cb1e932689d3b9188936b6326d44597f39. 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/QZMER2285932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57ee04047c649d653a05153f1855ced4fec46591a778e7d79c08e027fd6d7c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZEPW1907309.