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 0xf8ef928d41857538404517773d729bbffdad3b996cedb459ce89d460bfcd4792. 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/67573d06-d565-4672-ab73-caf200225292.json and https://artists.proofprofile.net/proofs/artist/67573d06-d565-4672-ab73-caf200225292.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One With Me (Joel Hirsch Remix & Acoustic Mix)
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 0x420624a88eb8bff5494748a12239028c77af6a38a470a9eb37d0ac170f350590. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBKQU2102103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf803ce6bac4d4791a5108d4630359e33f969ccecc3c1a0c6b8a5cc29d643433. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2174591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b771b0e1358e3ee0b23e86fa1f587346c2a908a63a180caf8df45b6445becb6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2197714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105a4065640ff1e58fc893d3c33bce589d794cb4132abb2f93bf5196656c00ca. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GBKQU2201437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d35264262128b3317503bdabbd95d0a6e667a7ae5455562dac5d9d09e7236c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBKQU2216824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c40cf2e7e1fb98b1cbc8c1d16b3601d5223a7023e7191086958487e077e2832. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBKQU2239378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacbb94cc7ab0d1492c08ba45876dc30ab0524679c18828c6dfbb0437fd34542. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2322800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8096914a409e39b6121220ac92714bca7b04b22493f81ff7c03bd740e07a2c91. 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/GBKQU2336933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420624a88eb8bff5494748a12239028c77af6a38a470a9eb37d0ac170f350590. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKQU2102103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c6136f9617d3bd7b89eab6f9b963a07644bb690e97fe7e1609a61421ae8e58. 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/GBKQU2351099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f57ee56e5f68ee03d3959b4ba615009fb99826f6fab5be31fdcc7c8d3e2f406. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/GBKQU2406101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aa76fee914b3c8f8019dc33f2f698ea9d6819c74f9efaa07f3309808376120. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBKQU2443635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4837ef372554710c8b70daa0a53b0630f999694ee6d775849cfce4128d06b01. 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/NL8RL2445322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f824907334f40fe080d64d36b132b285d427e6db9f7e1a93285c5d8fec0be04. 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/GBKQU2508636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdcf5d39ecb916b30df7dc80db6a92172675e2e66bf832680bddd5c5eb7bfb8. 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/GX5MX2561315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf785b2957b70e4cd64381c8572f09e03b400b07c2b7be3d3e29090bf76f13b0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX5MX2561036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612cc1a964959b55ddcc025fd53bddf6c921d0e7bd9649a82d2ddd08f9409555. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBKQU2581020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7328eafdfc444d3fd2894d2a2841b0651099954fea0e523b60482e6bf1f17f1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU2402411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2bd7b4e94306fb4fe839254cbeea7f038fcd6b4947459dc25f5681d3a80981. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLD682202718.
FYH389 - Find Your Harmony Radio Episode #389
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1f81b50134d184d48126509d30895fa51d667325baee1c7a2b5336f6ae58ae. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2413675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70072f09c67c7eb092a0731823876cf93d09e89aa9555589473884e82077039f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLQ8D2201376.