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 0x5acebbbc08e4a5949a313c38f3c500eea3ab54d22f30da32deb142e1b71422b5. 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/820cfd63-5391-4e53-9fce-12d69e903147.json and https://artists.proofprofile.net/proofs/artist/820cfd63-5391-4e53-9fce-12d69e903147.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 0x6bcdb63c1fcac22e91a848e1b5cef208642abcc8bbe84487f9a2752068e7b75a. 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/QZL382460119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4632bf8998f032c019d7f84f6dcf580dc7d67154b49a441eaeea2606641f5d14. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZLL92416174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be0ffa7c0351a5fda60059d88db51040f5ec68944c7ad8c9fda5d99532362c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZMWW2496255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549cc90f928b4bb8ba81af0e11c0178e3dd71daf8d3a50e72358d42b226d5ec2. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZMWW2496257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74072a28fcc3b3e7898785087d06f0716243744e35571e1b9589152ddaa94586. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZMWW2496259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885811dec163ee781116b3d86e36cd3f8795b9f773c326ddcb10c23b4c75e6ce. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNMV2425711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa55f8604231900f7d2d114dad665098298fe2a5a73310ba366fa250ca7f571b. 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/QZNMX2492140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cfb3e6b52845ef1c4caedb93908d0f48790b8222ea3e2735a34a5231d86682. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNMX2492141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde319b8817f501cf74a32f9ca99f2db09e06df5017578faae5fb46f32a1dc50d. 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/QZNMX2492142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b60eb9c8d9cebaa7de1343f71929a37e8fff3e3b860eb47ac6bf7429c84a69. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZNMX2492144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821d6a129e64b5c939dee9e42df58cffe34a33a89089af4e1c761b50f7d402e0. 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/QZNMY2464050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a6d1d70b064165e0b62dba46e642d2aa3b6a6760b93c0b3d068234bd7f2dc5. 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/QZL382592078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25def18c453ffbe430c8c45ebfc7e9bf1359322aa2b159c56e654faf5d7158d2. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZL382594233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b300ecb34423466aec8063b9b9437fbcef8c24b19beb83eeaeda03d7c1a22f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZLL92574089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb48efa39c98547c0419f2341b4cbe8d250b19a0d8200173406c29217dd0092. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZLL92574090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa314d114f17b23a2045bf832c688de9c94c6bca9fb5f24013405268b95831acc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZMWW2540605.
Genie's Desire - The Auntie Jeralyn Tapes