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 0xe42dd563f7d67223d42fbe606c7fa867dcb027f259e8fcb371fe1eb5cd102ffa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52ab9b9c-93fa-4b6e-a444-fa6408c726d5.json and https://artists.proofprofile.net/proofs/artist/52ab9b9c-93fa-4b6e-a444-fa6408c726d5.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 0x4b79c11bd1a9f6705adcaaebe4da05c6e5565c3afa0ef6b3d7f175d14072ff57. 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/GBSMU7718237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc3218bf2dbea3f5447bb3d2c27ac32be9e0ff17dbf78acd09b01bddc80d4e0. 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/GBSMU7718239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050ce478ef9a9aa19242f20164ae2317e55e251fd24b9bac10bd0b1ff97bd0c1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBSMU7718241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43264aebdb0bd933f3b697e8aedb61f91731d339e9ad68770875c8ff46a45de. 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/GBSMU7718242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8ab65ee6e7d35fcecfce4c2efdd13dcf5c6e28e75ab933f711093be6eeee25. 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/GBSMU7718243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb51fc0a91e22b7b0f3e8370bb3463b0c37ac431f15335c4702b7baf0ab3f51. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/GBSMU7799069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f2ce9e902bd00d087273db5c81663a95ab4005b5268dc5bd10f87e2d2d67fb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBSMU7799076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fff15a868884799e7ea62cfeaae41d2ddd5bab701e6e2407144b68115c9444. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:49Z), 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/GBSMU7799077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17e49b1b036182fd81d8ff4049a7ba10b9dff0bf21cd1dc2ecc502b61eeff1. 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/GBSMU8084396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016c527f6c432cd9c860cc3258506c3a9fbf66968da1dbae912260dfc738a9d9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBSMU8084398.
Background Sounds for Reading Chilling and Thinking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12bc70b828b8f614cc50cdb5057296e001e8760d0a919de65f1afe447f0437f. 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/GBSMU8084400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2875fd8aa4578ee73bd225ce6735ae7a764dbfa1cc424dba724c7a2a25ee18. 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/GBSMU8084403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50d6765377a5ddbd16350509960eed1ccc949841f68978b518776fd6c59ac3d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GBSMU8459931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff37f427c422b771a270ccbbdfc3954d7b8e0f908b816354757b392296c6fa57. 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/GBSMU8459932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7ba3da764ab42c38455428fc5fc0adb5377ed71861159780d7885c9d553d4e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:42:46Z), 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/GBSMU8459933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8299ab4ad585c30cf9fcaeeb82af9dcfc212c571afa903dacbbf4d59759145b. 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/GBSMU8459934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ec1c60d6b78efd337d719b07b9fe8818a1125f14c86735f225914d1aa47e01. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:24Z), 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/GBSMU8459937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1949329c699ee818a213bfbb41c62dfa03bdfd271baa92183ef8ecfc8d4a1e82. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:09:46Z), 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/GBSMU8459938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315d5b97adebadd34921a29d7df0e941c96f6a8b33f673750ab35f67b305ce2d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:03:21Z), 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/GBSMU8459939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6e7d4dd0ed217fae761b631ce73b717421e43f9c5c5798ea00a2a65b748446. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:52:18Z), 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/GBSMU9585642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8173adadf523f0590dd603c993e2ee1e5e1c99ab73e50cf2be896669ac3b56ea. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBSMU9585645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cfefffa29505b94c41080914840177a182860f4bcf4791e1d736e48c94b922. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:10:02Z), 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/GBSMU9585646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c3db89ba7c480d72eb12e586f3f194f92d1cab356448865ab431e74374f942. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:19Z), 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/GBSMU9585647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5864f31ef0ab0fd500c141f0b5f4429005140fa75081d44875302db7790c8d09. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBSMU9585648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19482d2e7507509d52e7950ff51ac13a9425b270af7758cdb49e77522cf9e69b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBSMU9585649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1486a5148fa2816caa7dee666f47489caba81639fa85ea81dd78ba1a5a9bea07. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBSMU9585650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda978c5e557a3ee54f6ba7698a6b743c5176f6a44aef8085bd857ed56b8290d3. 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/GBSMU9585651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3537fce2f6fefa8d9269eec9651112d9c59a848bd0d5e8e7c9731461d4a3280. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GX8LE2373346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469ed9c239f3e07959c7fd2f7657b7ec1825b31b1fabd4d9245cc4dc44f8bc41. 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/GX8LE2363179.