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 0x3bda205179647cfba67056510ab93a590dacdd3efb7364d1645aa574e542ff1f. 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/43e675e4-ae9b-4b52-9f5f-38bc403bb3a4.json and https://artists.proofprofile.net/proofs/artist/43e675e4-ae9b-4b52-9f5f-38bc403bb3a4.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 0x9ba62bc5cbd7e8d891c69f2e49fee69a722fe7f279961858d270bb87b7781ef1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US4KC0978801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41785177550727aade0dc8e582a7e336a3daa9add92931d884328fbd464a1404. 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/US4KC0978802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8972301c95b87585c1f8e36f5dde1629ff2841bda268674ef7d236b1671327d2. 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/US4KC0978803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31ee0a7f3acdc7aa7e2c56cd764f677bf7e81a1b556b0095dfb8486cbc9a542. 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/US4KC0978804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91e1ce42f6c2dc72f8908786549e88854fc8285ce8fedc6f90a04ba689c5d11. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:04:08Z), 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/US4KC0978805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06edb134b1217e28a5f0286cbedeb7f172f76744d3d829e46030433b572db3fc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US4KC0978811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b71c4bb9169b9a120c034b8f909e3523dbd51b1d1c9847a882ff0a48b76929. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:37Z), 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/US4KC0978812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2e768f764198119e2ee6756151dea0fff4db6d223f890c4455d64088082550. 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/US4KC1194504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88bc9a7d3f2cffd2cdc5035c66cc8d159fce811c2efe2ce139c0d9dd39e1613. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/US4KC1198404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83e26decaff316b65def3d59b976db644ba8a51c8a5095455b94f4585f9ac3d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US4KC1198406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92aa531b3ba32a315d2591ee949d5f3edc620bb7ad29eef8e6269d18575b056a. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:03Z), 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/US4KC1198408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ead96e9decfe9195b8225193132de27c1bb5fa51f2f2d65fab0b65bb731d4c4. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US4KC1198409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da314c280657b80396b233031e3ecd2b82bf5a948ac98ef71ce92500294f62b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US4KC1198410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b2572a7799c5ae4e8fcb54ec911dd1f6ec25eb64fdbec7fbf9811e71fcb4dc. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US4KC1198411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f07d362276eece24611ec7bd8fa1c65b3d919d94fa956aaa287360a7be899. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:02Z), 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/USHF31306903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa314f304c65e0604e54734fccd214f6085466122dc06dfc20de6cca89160528f. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHF31306905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3721b2f3ae622e934cc1033c4c49d175a4c244bdd140492843f1de75864798. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHF31306906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d6e043308b7aaebab723b0c01c8488ff59e7826182895c9be0c87f985045ef. 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/USHF31306907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935cb258e0b38cd3d7639e90feaf729ac1a0d6c47766958fc7f26b9601b0b3ee. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:24Z), 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/USHF31306908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f931f61c64017854cb689b4ac4b18f40c6fb4e5fcf7b9becc2a93af54440312. 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/USHF31306910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c81f0ac2ff691a7581c8cdc5372e8a62784a5834e9c32e0367e1138a2efc93. 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/USHF31306912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ec1aadce4f7b74a97e4526e2a67d5e41e59365256c3c5e37987b873b62f4e4. 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/USHF31306913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa247ab49d9e96c39a06c120f78295c24cf3b78bd67bac30def58091abf6b2ab. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USHF31306914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a0368968bb4ecbc11b45978d5acb56f762f39e9674feedbe0736ed72396c3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US33X1412901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249cf78c3f0f89b421b5248becd4733f35952bd55eb26e664e70bcb4a8f595e0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:58Z), 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/US33X1412902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8572b34b967175d2b20c94bf0e6985730191c0fb2f5154f03f6d00a463e0c4a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USHF31509002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241984fdbaacb590db044923149c45cc5d142ce5492e7fe9f16bf035ce327521. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USHF31509005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cfc296d5459771f7a7134b0fb118d8c1337511ec4894ed64f4bd512758fb40. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:47:08Z), 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/USHF31509007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723fe1096e8d185edf482aa10e73775cd8d4bccc4dd3e5c2fb3ebaf908277ef7. 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/USHF31509008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3035480c88e47fb372fde4eb1dff95019f6cff6ed77a20896eea277a72db0c05. 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/USHF31509010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28e1644d4d6c147b1ef5b5dd992018e066180e5cf239b0a3caeae40e5821b35. 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/USHF31509011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b700318d502b416d4bdeac8c92586e16a1cfc0afca9da1b8e163644660c2ca. 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/USHF31509012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5f03d108701057517f99317a2960639044ed10cc6afa8a299712b0924a61c0. 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/USHF31509013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf167049acf964e0cc8945e008d2195c95e09810e5b635ada3ac696a7aa5a9383. 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/QZ6SA1700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0015b7441b720a1df7411ac33ca1c4cd9ac08ec55ae34215a617e3067609778b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZ6SA1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeffe2edfad68263c812bf95c5e72077c57cd1e8339c3a7bcb46674d03709163. 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/QZ6SA1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac0b8b7519d75ef70fd8ce9c190cb2f09ad59c04170960538282528d50c856d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USCON2100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fb202560fc3a8af6dd17b9fa5887a1c2c69356aa6659229844d81c48117afc. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USCON2100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc811684b8959e5e4ed60bca8f75fbf8e7b1da5416a51542c18954a94547a54a5. 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/USCON2100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce30aa028871f9079cef36848c33c630d6ffd6b94075c759e52ec5d6e0d9b4e1. 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/USCON2100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d03a3aa157b31e61947ce6756c09dbfeb6a0a548aa518155cc83c6ca5b31d1. 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/USC4R2341187.
The Moon Is In The Wrong Place (Deluxe Edition)