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 0xd64aed46159e37c2e0339f847d5a1b79028c5c3723e7e75d2598e8a8a883c2cf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48b00274-d884-4c6c-94e5-4ec5df715318.json and https://artists.proofprofile.net/proofs/artist/48b00274-d884-4c6c-94e5-4ec5df715318.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e3ad1414199f3e17d1969e8f8b08b951ac5b47a4d4156ddf8af105059314e0. 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/SE6I32025380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa96ee2356f9f8d220f1d75d2fb9fc87e62771d6e752da0021dd3777eb272d24. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:51:50Z), 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/SE6I32025393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa955f2fb86a2d9c468e2a8439b1aad213e925f8bfdfe5fb9202067d54f3c2d3f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE6I32025394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b30a459fd24a2012c91da10d915e4f283fa5f6586c66eb2283d743def16382f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE6I32025396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68380d46ea8a539ec97df4839463fddc14bc47a8d2865f0e8ac91e58f319b46c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE6I32025397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf1eacb742a25c28b7c3b5d0ab106c49e0fdbf6475827de3eb0fb3826ba44f6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE6I32025398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2525ce6095032741b74ae6be882ea9a74074a1e199f4118d89df70fa99dbc3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:05Z), 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/SE5BU2180460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99cbe6fa71edcde431426650b1cb167efbb70264d612a8bdc38367edff7fbde. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE5BU2180461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe9144ce956d4e440dbc1213ffa9a351122d68215ea59fd947b18ce10432437. 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/SE5BU2180463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2dcf0a3a0bbf99422d8677deb2ff11dcf3489a6b7e0b03dc3321c0e89560b8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:40Z), 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/SE5BU2180464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7401c49b76b7f8044e4e026c5a8f7eba2480e953516dcb1c1c11af734f3b5f83. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/SE5BU2180465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d6f73ab7110e26ef0117dd6250b4ac32f22fdccb6a7d3087fc88c4858294f6. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE5BU2180466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369f532a3022c5d611dbca47602fa4d9167969e782bb5f1fb31dfdc30423db32. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:11:38Z), 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/SE5BU2180467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a41b71b7767ab16ccfec7f87880a7e4820caae344f311b471765d8f9902638f. 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/SE5BU2180468.
Recuerdos de Ypacarai - Mis Noches Sin Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b0b275624a72b5ffd19b552acee987e9857a1b870bfbf8e98fc4c16f5cb624. 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/SE5BU2180469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41eb314fbba2cd74401642174a1d93d3192a294a4d3a9ada3a8b384e5432e25e. 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/SE5BU2180470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ba701261e5e80e9943616a48e524bb0b40f1d5b04f60eae3b43715b90b6967. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:33:48Z), 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/SE5BU2180471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9488ead505d658c97388ffaf7a265d73d8519e56ed09c984da939f7b85d9748e. 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/SE5BU2180472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65d3665c883643d947df926376f21d278335a724a6139455fe0dc8dbc6f899e. 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/SE5BU2180474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d271233fd09eb38a1f68b5700900cce5b1104c2ad4734d0f15513388aecb1bd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE5BU2180475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4488b58a609851d20f41bb2e052a2d6dd85f7eb71f9fba1518d031c8eaa414. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/SE5BU2180477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8a269d0092f4e30201c22c9b80f3a1dabf85e35140b89f9c6cae44d345fb49. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:36:57Z), 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/SE5BU2180478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa584fb9bffbe88f61f5b12d9e3f5525850763f771e7c427e32907953a9d2a734. 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/SE5BU2180479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8469fd67310b0ee3d64f9097c10f5d272e242f2ae1c198769a951928c9e7a32d. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/SE5BU2180480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbae3fc940eca7318f7eb32f626c12fb41d96567c3b9b3ecf792847f347d849d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE5752154028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b89e5723f9ba1d010ebf023441e57b383e0b3e8f67c2a3961584b6e311d445. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE5BU2180482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ccbabf5dbc308f86ce9df7a382c03640b3f3dfce452b5964f9ffb6585b2f26. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:11:15Z), 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/SE5BU2180485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83faab599d8c891eb43adeff3225e12b516e5819c57007522f5dca86846a2662. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/SE5BU2180486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed531056715baffd87422bee9f02c6193b7b7d7e2ce18c6d6ba1b7f03a15fc5. 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/PYC842406189.