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 0x5f9376835cd906b948071a26fc23c2de0b58d4c2782d0eca12eba1045798a200. 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/2d46113b-e365-4172-8e61-a3e0f59975a2.json and https://artists.proofprofile.net/proofs/artist/2d46113b-e365-4172-8e61-a3e0f59975a2.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 0xdb6cb3c05a563571a4eccc5a7400ee47dbff9110c4feccf03926cc13bc22a250. 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/QZ4R72000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1601df1f7dc47276e1e6ea8d45c653f32dbb936834868fbf5f286a053c591b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:51:31Z), 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/QZ4R72000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbd718a45abdc07cc7301edd9836ba818df50895e6eb4e386407adcdc07d7eb. 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/QZ4R72000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115ef852be6ac55c8d8536979feecd2eb16ee3fc29cbeb088c666ceb32bcef49. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZ4R72000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ba75d8afac4103b100603937f9474c2efb69ffe74764187e22ac8c7331cff2. 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/QZ4R72000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1121b8a2a9d06cfccd0f677bb99e69aac53989b1fa20c0de981b5348244993fb. 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/QZ4R72000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e9adf703ccb4ff0b36af2543fee1b571a2fad80da0f80189d92be50258b4c5. 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/QZ4R72000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5380425cb77b06dfcd3767c9f55a00305820a59fd10ab2fd28b0efe608f995bb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ4R72000010.
Spot for My Snoot / Hydration Is Important
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bd78c1c3a87b8a0eb58e0fd06b6e28640daa922ac512343b18f3fea6b03b69. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZ4R72000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0cbff5c40c8ffa6ab003aff49a115af84f517bf9748c13bd3e77c06b631630. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZ4R72100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f559c240fb1b5b4cad5eb2350ddc1814027898cbc81ceb3bb971ab9c8b13b. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZ4R72100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6077e72f419b473a99345f142e0985ca4921207cd8253251f63d2be0a2dd06e4. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZ4R72100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6956e02fcb495d45d9f33cfc03fcfd79f5db0f6782b683fea8ecb59d7966d1. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZ4R72200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd681832644dce49cf51a984f8982fbf365b22c9163cf3b26b094c3f15082a54. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:35:18Z), 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/QZ4R72200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0671fc2ce12caff08b2232052026aa296df0fa11715ff8e18833316bf265710. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZ4R72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35eb7c3d1b67bf96528c8962f0fb3fd6ad076e96c4469e4d1735013893a6eab4. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:03:17Z), 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/QZ4R72200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54c442e242c1104b2bd772c2e2b7e574318257e2c160f765da42e93b7634eb1. 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/QZ4R72200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8549d41b73a01d7df3d8173a29115d11d1aab811f11f5803fab3c6b6d16fcb99. 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/QZ4R72200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeab8f4bd16bedf07db47bb3d01652c1f9df918a8fdcce8943b5367828d6e67. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZ4R72300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe119355be6e38e1b7eb0d5da9dc2ae0394844ef52d049651bbe6c6d582d758cb. 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/QZ4R72300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85e3b3711b82b7b011d06566a01a21a0b53604e2a2f80f0d96d616b929bb219. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:54Z), 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/QZ4R72300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02886c518b5208f46be5e5d545cd5e96a37704c4b7dbcbaa0310aa7c9b0fc949. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:58:00Z), 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/QZ4R72300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fbd13a6a731ce06bce5b587b48acbc238194c5fba852f04855d5266a841ca0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ4R72400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfd83099423dba464582b889774303f3806716dfcdfd66532d9788d99fe051b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:53:27Z), 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/QZ4R72400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48964ebee5eac86cef6a203b1e7e85b6e8c73c61b492e2fa56d802de5c5eff6. 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/QZ4R72400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2133589fa9d33d69b2422c667ccdc59db745b141160c6f6ced225d3021cde855. 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/QZ4R72400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861bb64bc76dd8f8e121dc29bd48d59381d158c493fbeb74a184d171c4d938e3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ4R72400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0153e021c56cf7c8b42e2a8efdd7e3ed61e0234e790100a21f818ea4db4d0. 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/QZ4R72400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6395a59c7dae4dcc706c5677dd93141a8ef9d3ef115eca38ce7d6d4aa01a1026. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ4R72400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d85660d050ee6af68aaeff00c6e27fad365c40773208cb9a4b2df95080eae37. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:47:06Z), 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/QZ4R72400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d3f1b08aec9727473f033919add83069015ec5c5507bc4ec68eecb831a2ae7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ4R72400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5809aef9ecf7394aa947766d180a224a3b88b2301c1674095715a395d88497ec. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZ4R72400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a418b483cd103e9a483e733eb63f724332fa3d454bb2e1eb608480ace28a9f. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZ4R72400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84578cc01b181b46bcb3a4fb9cf5987544887cd6faad19b135258815eb7175ae. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZ4R72400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd904616e5a1284e047f2396c6a707f352f78b4cf6e203eae854e44ca88e4001. 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/QZ4R72400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08b9d3338642f3960c28ae7de2800a0e20c085925a197e6748a1215a17e03cc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ4R72400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749c7d6845f865ca23c876b47ec32039d00cd116eb18a3e9044024388d688ebb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZ4R72400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d968e3f43cd3338ad60ad8a97575927472fb7983cef8bda96a25f95bbc158a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZ4R72400040.