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 0x5f4655be3b3eb64b79a8635fc73769252190723668ccbc3924d0037c6b304ac6. 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/41cf7233-5056-4e07-af97-065f93673e13.json and https://artists.proofprofile.net/proofs/artist/41cf7233-5056-4e07-af97-065f93673e13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
BRAVELY SECOND END LAYER Original Soundtrack
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 0x9744344f5f4147dfb96ae3ff65b453ef56fc2e9003c1a4f6884469cc9f03729c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/JPA841500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a02507fadac9a3597b07a1a454b05a55085c9ef5470694b5e94e02b1f419eff. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/JPA841500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515e000d646de35b01e1b3f90ed8732f950fc6cb9a6f2551293f01e83303e3a4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:48Z), 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/JPA841500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf8ff585958b02da9eecb77fb87eb04b06fa3de7e324568b6b38ff46a81508. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:03Z), 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/JPA841500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac161c5f7df76ab3e613b15878dae755a44ea7baee50f56eb14216ac19ba0034. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:02:44Z), 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/JPA841500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950656bdd682ed03387b7e4ff5468e0bf624054d0ebea528d621a91fb483b96f. 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/JPA841500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe696f83326262b3ed4ecf4c4afdad9c73e60a240b6ddf7e3a6c399b2fe6fce43. 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/JPA841500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe771adcf2a7f66d7333246cc1e17f57170d809f15f7e1a07425c0bd053f507e1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPA841500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e7f4cd21ed4560ac0408132a0cd5acdcf55a7c26fef2448cc1da152adabe2d. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JPA841500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2e71d66250f9db39d79afd3bcbbeb23aac43c9e97e90e827fab5f4643b627. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:56:24Z), 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/JPA841500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230c6460de5396d5bf0c944922cbcb72daf4c4b3eb5c96aa9a8bce1f6a51ed9. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:32Z), 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/JPA841500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b60651122e9e53f066ac80bbc87e30827bd964fb9869fb2e835e0bdf8f8f39. 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/JPA841500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22e962f398580e094feca299df409e83aad73002b26f003a1ed9fdfa978be70. 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/JPA841500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2e71d66250f9db39d79afd3bcbbeb23aac43c9e97e90e827fab5f4643b627. 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/JPA841500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4eae64434e0011ec927d99227b14f9738c9b03ed6c54d4eb7e3996d315e859. 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/JPA841500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78ac1873d0f25c587efbdf0298f885b9b70de8a68de244a1e1515e258ad1f8c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:04:27Z), 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/JPA841500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5103483c7486063352134edb132e3124ac4a2d6e7f20558707bc7b2e976d47. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/JPA841500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9113ae5775737be7fd74d10a7874de60f2d13b705cfcf5694f15c147af15ef1. 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/JPA841500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a02507fadac9a3597b07a1a454b05a55085c9ef5470694b5e94e02b1f419eff. 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/JPA841500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96ae456debda3bd59d5ffdd9c1e70b4aca5aa1f58b025833eee1bc95704f69e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPA841500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265b0f6952e7e8abef8908e8019179b97c88045a5ce88393d1d6d8005c7d3504. 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/JPA841500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c6d1afb4673db3edfc750746c5fdd0e7900c77ea78dbdf88e44c678180a735. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:54:03Z), 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/JPA841500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168e8cb4aac92c6aa88a8176db942f64ac9b4d7692a8581f51ade452b6860572. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:16:53Z), 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/JPA841500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abf56efe6a1071fdca27c089ddb33935ec80e6b5f9bac88c8a31f0ae56f93b8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:39:26Z), 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/GBMA22576946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9ec9229823e3607287447460738aab250fe06f26747d8fb8ecdb2a69120ca0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMA22568782.