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 0xedabf061e386b70b1b152e9efb329947e1621bdf27a5981eeb0ff0f1ec0d2885. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65ff5765-d7b8-47db-8168-4604fabcd438.json and https://artists.proofprofile.net/proofs/artist/65ff5765-d7b8-47db-8168-4604fabcd438.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 0xba180f4ac9062601bbd19604bb546166ecd880f8b51f6545059e6a3d621c4cf8. 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/DEWR72300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8111deed6d5611215b8676e56940b54781c43353a3cc5632e0fb89efc48c963d. 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/DEWR72300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65b850213562901b3e51460bb37114fe1af572359236ae1a37af5fccb33f7b. 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/DEWR72300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1bf9c0ca46b3ec5b0d903d33cdfadac1184162d9b0779056ea2d5c5dcd4784. 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/DEWR72300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4ca0ece9818454861d376a69219eea92ead55bee57333a8f9a6c153cdefccc. 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/DEWR72300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06ee2bef689dd24fd18255d1512dceb12e562510a7d58137bb8bc8f9c0c93eb. 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/DEWR72000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378a2441c6f1dd46c89592e0eeabe006a224b2b6f742f48435ca2b8ac46b8bdc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEWR72000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6ed72659382587de876589a9270e3bffaae95654dad8cf4297b7e54bc1d4b1. 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/DEWR72000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f26dbde24d65fa9ff32d36ea3e7ee19172835a0b5d561fdc38fa6308589d6b. 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/DEWR72000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228af9173a3d0c176c7756cae46050110c97f813ad316c8536603d3ef2ef4a8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEWR71800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4baa8352e21a5c63fd5436b4b8790810a52dcb0ad809b154c6f926ef183ed6c. 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/DEWR71800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b81a9f51e5f193642fb7c28025a7e0a8774879b52885f6feccc97d2a9cd76e. 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/DEWR71800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f27c876d572cd36172c532fb73c8cbd38738e307766e1a439013043f6ff045. 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/DEWR71800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d4212babad3cc1afc3e7e8a2f1898da0a7c19d845254c6d366738f09c502fe. 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/DETU91500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6f1f5303d95aa57f025d66dcc3d648e1bb1576277e948279fe1af41b8a5337. 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/DETU91500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d48a967ca8a09d9e141954a3dc01e52adaa6a9907e2a820776d991416dbb93. 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/DETU91500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa207c1664e4aa0782c8c52f61f4455dc7eeef06aecfdcf3dac47bbf7238bd0b4. 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/DETU91500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65b850213562901b3e51460bb37114fe1af572359236ae1a37af5fccb33f7b. 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/DEWR72300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8111deed6d5611215b8676e56940b54781c43353a3cc5632e0fb89efc48c963d. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/DEWR72300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1bf9c0ca46b3ec5b0d903d33cdfadac1184162d9b0779056ea2d5c5dcd4784. 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/DEWR72300044.
High Times for Loners (Alternative Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa285885ca34cdff1cc81728ef0dcea8cf8a4ea8e06a3c4cf63a37d9cc9a1d299. 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/DEWR72200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8989ff6557c0b04254884853d5b1532474505cd76bbca6aa3b36c113bb17c935. 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/DEWR72200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10708c592d756b560a468e217c97f5d8d0300d74946bdf9882e88092758d451. 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/DEWR72200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9d93be61e5e57c3f38adc52829fb9cc8786e96f3c5f4097a88ddccf4599ee3. 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/DEWR72000009.