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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde4b61af73add7aea4ce6e86a82ec95748d6bbc10bac106d886d2a04dd91bbe. 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/6c22df54-1402-4a15-8ebb-6add30f4abb8.json and https://artists.proofprofile.net/proofs/artist/6c22df54-1402-4a15-8ebb-6add30f4abb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Young, Wild and Reckless (From "Vandal") - Single
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd60905f8aad7ed892bae57f0236f9398879700ffde69c1a1e2f0d31882d6f1b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBKQU1871003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e143a09eb2ec1cab39d3b4d91872392f1c8d1e620907e6d8d5d7e2a01d78c7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBKQU2076313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ccd6072b4462201d2fc5fcaf0a95806d128880a78920f3494ae8f32c672dd4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:57Z), 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/GBKQU2076314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99eaa7cb4be6d0a65767e89136ecd33f71e6304a52c2b6bfdb8d8e27ac39389. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR6P12001660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81531f1615b4ce3b55d4cbd1e924332b7a1cb93058d2a38a2379b03bbc7dbb44. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM4TW2366537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57caa3df7504636dc66973641a2a744cdd2fad7ecdabefeaf61c08e00890327. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TW2366539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b2ef7e29bbae2bf69e3f20c557f8e1f69bd3ce4dd65014072904b2b2334329. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TW2366548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa100a2cfc9a927d99d21dee089e6557ac84c69d19a2a79dc9b60e9c36cfe5c32. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TW2366550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1080726476af91633ece235ce478b88735f58e6c0c26853ae066c909afcdef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW2366554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc75f5c4127bde3007d4018fa9c63dd97b13a07980d8ccf961e43ebbdd988ff2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QM4TW2366536.
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 0x64a73691c56616819a24f6c1bae10e3d2e08d1ab892ab32a360d7ecbfa5a788b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QM4TW2366540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f673ac92f79a665cf1a33c23b40fc1d201194f75c6faddaa971f9698ba6e76. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM4TW2366542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ea173e69f1ae622484ab017d2af1915248397b683c673d65c558865a255e7b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM4TW2366543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf2e57cf90d7a5945eca3d1a39b5715cb7762fbf5a58f6de79442554efb4750. 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/QM4TW2366546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae113488bc24ac5aea7b3c124ca7267c9d0448cb137aff64ce28604648be1db4. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM4TW2366551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae01d7f063ddcd062d4b8e1cf396ca70d93320269fe131e601ab02615417f770. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM4TW2366552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70fd82f4f4dbeafc3a9adec87439685134d30e7b944abc5289370d639fa68d3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM4TW2366556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b05f495f139936c3dc541370e4912d0d368bd09d89f98296e086f01f8fb51e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM4TW2366557.
La Vénus d'argent (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b93c879865123785fc81affca8f2dc27eb66924318eb47d32f6cbc70713104e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBKQU2597628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b8759cd4ff23f1e4ccb427cda0c4990713fb17b437249166658fe0fd8c836e. 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/GBKQU2597629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374e367459aa5697551d8db0288e1fe9be1722c09951456cf12c87b9fdf40fde. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLV62216584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c04670873b7c0ac3c2abdc6608abc8f7fb6746ef3e8fd7cf7d933615395ebb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CBAUX2302321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650330d40eb94df306bf9d61e6d586632c8c30a8fb1a62a8b2baab49a8fa8cd9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLV62216594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99eaa7cb4be6d0a65767e89136ecd33f71e6304a52c2b6bfdb8d8e27ac39389. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6P12001660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8470ab395af115ec4ae6980ed9456732361b8f3cfe881d6da49cfe5464730076. 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/USA2P2109218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94503330f2bfef77628fad596e4c64966f6c2109874bcaebe316fe572cc07eaa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMBZ92093100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94503330f2bfef77628fad596e4c64966f6c2109874bcaebe316fe572cc07eaa. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMBZ92093100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb78a3d9641f2ccdc1e54b48b6467e602698b169a5807e5f5de6ad93501cebf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU1943222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b080daa21d0d3f0b6690aba6c6a7bf6b621e770954ade518233921d2a25dcaf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLV62322143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42ce33cfb291a0e13eadcfd3f567cacc71a6426941f6314dfcf9c76a76b6e97. 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/GBLV62137276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47a0321c090a161a65e3602278e78c1cad66d447e413b22feb02a3844a77d1d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU2053532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecab07eb038444e743a131d1a3e9757e905935f9d80499bf142b59df2c186bb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR3PA1500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c98e26af18e9d02ea5b3a5f8390cacf917ceb2c95baf2404441119fe119adb. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMBZ92284021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88244fb497b1b2746fb3f3d4637446685ce633a2a2ae5b6b0a39efd77bace119. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEH742409759.