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 0x2e971890da1bf7ce6a2ed822a9683a72680ed0fcf6e956690e7dff56e75bdc3e. 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/27c00724-9099-492b-915a-f29f0e646d53.json and https://artists.proofprofile.net/proofs/artist/27c00724-9099-492b-915a-f29f0e646d53.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 0xbe3c2411d34285c13e09c00cedb8f8bd5d60e0ede7f62d3094be44fc0943eeaa. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QM24S2203771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc7758ce29351aac9ffa6c053522e1485cc5fd727cda929799dfe53729d3452. 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/QM24S2205268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3c2411d34285c13e09c00cedb8f8bd5d60e0ede7f62d3094be44fc0943eeaa. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM24S2203771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7a403b88b4cf58a3051b87d621ed3884b53085858fcc70468adebd76c8238. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2301902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d9f237fcf32e099fe7b00dbb1fb4ceaaaeb9beeecf74d896942844b7729ba7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM24S2303126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7a403b88b4cf58a3051b87d621ed3884b53085858fcc70468adebd76c8238. 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/QM24S2301902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962f91cf2123573deec254a7b677cad335332ebc8acb430e05b2679757cbe521. 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/QZZEB2340474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe840b24a5d842ac6504322e7b3ab0014a7c280a149f325602b5a4eec373a11d3. 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/QZWV32443124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8160ce08e819e6c97afbb6ec06b5f37222972414f89559befd4e74401ef7708b. 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/QZWV32440932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c6dc5ca49dea80427b632d29695126fcb832dc182f13448cd3fe2e0e74c8cf. 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/QZWV32459850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245b21660c01a5474f3556306ff098b6856b67607cf7274e842a88d5c9fd2b2. 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/QZWV32459859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b3d878014368292a5b6948b00f3fe15b3f8be528bbb3ec71a76aeec1c1292b. 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/QZJ842400581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b246f11ad56cac5ae375950f686135f96ddc4a195f65c143f33c091a881409b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZWV32459868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730d60f40ded4bcb325f1d6f3ff89c4f195bf92d41e1caa325f7320829d38340. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZZEB2468710.
all the things that skare me (extra spookie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8259a3afe6539519bbc88015313e831fbec81055c8b061f538ad76b5097037bd. 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/QZWV32459829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e0445a2ef2df2bc1e1d5b68ff9c3267ff1b3dc887822e0637bd326d2937e88. 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/QZZEC2422294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ce1d9a261d0de8665ee2758ff137c10633233959b592a816050d791e3ac8f8. 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/QT3EX2570076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5105267e654dfc01140cfe7ca4f2e57556631cbd376c9c8a3b34999ed37c8d4. 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/QM24S2504638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb7a284e1f7ad40a72196af79890a76033cefec818da21dd85ac23488aa0c03. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJW2321576.