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 0x34e5dc797c92e794782eb5eb064bbb9edf1d7db6b109fee5033d9e2b07440c2f. 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/a8492f3d-a17b-411a-9481-1345c19384d8.json and https://artists.proofprofile.net/proofs/artist/a8492f3d-a17b-411a-9481-1345c19384d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Commandos 3 Destination Berlin (Original Soundtrack)
Commandos Strike Force (Original Soundtrack)
Planet 51 the Game (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 0xa8a283dd10cfeca0707babc03584e578f3ad1f5bb2b05bbd37e98f8362f974b6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USA371460156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d730cba95206e39ba2f2bf05dcc89a65ab25709bcf01f42baae2036282397. 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/USA371460157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d973e55aac92669a56d41c62c806e6c04e79ab52d3fcbf963c05ac98dae7dc. 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/USA371460158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d5fad812037d1d50c22654c77dfdb9c530c9eaf4c274231acbd7f4c3ba748b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA371460159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab9964a32394dad5a893024f46ab7c649cef6b3762e5f6cf9c7db4240fdcdfd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USA371460160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f5eb736eaa44cb6fb8094a66e4b15479a3b42275be995529472f7385df3fec. 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/USA371460161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6334fddfa2cd1ab1ef19d8145d1f5700ad138e9c21c93c8c149d4da5664d60e9. 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/USA371460162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b27367db85f3c0debbcf5cd8b8921fad63f6cb449cba6e38bb76ad32c5c626. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USA371460163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607450c8806e8ab0448799ecdb51551e12a07999fa40c1212ab62d966eac5662. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/USA371460164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c8c3d82e066c2f8af096c3fba62da1753b1c7d8c8638d0081f12301d788a3c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USA371460165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39017fdab004b15967c2925168be99178801dfc065233e63b9888d79b7ed2f09. 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/USA371460166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e58b047e3be9f3467ff9025d8b474f7cbe331278b49fc4a330cada3d7dc290. 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/USA371460167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a9ff17073fea4e1fdd756801b363d4f78004e2ea8f4ee9b5c843ddd624011f. 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/USA371460168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd460dc5b8dfd757a32954bd64ae3d54f2b877e8300300f92d71c3e516f60d1a8. 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/USA371460169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8287869b78938e492a383fa05d882cba3a4e0d9dbe8e9ffc5bc4ace45fe3706c. 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/USA371460170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7df0b518c9ca259588ceea6bc8d3088767ce16910e9af6c886d9b1be8271510. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USA371460171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c08648926ffe1e0263c7ba6f3852ee3e3bf3580c705906a314f69cea5a9cca. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USA371460173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa246c97834c61f72fe2e8bfa55fddf49dbb6bc4f768f1040fffb6e3b14fda56d. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USA371460174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fab0e908770c11438b418ffad1debd2ba4f44a92e7c0ebd9766340f38a7a609. 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/USA371460175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0fc571599846e48e90e621479b6135d148c0d540dc5c1497e2b561e2c0fcbb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USA371460176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40f51702b6d32bc270dd0ca05b6fac015fb6160b8e7824369c18a67aca65777. 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/USA371460177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c200f195b2abc16c13237754b503635338b6e74de3267d2421f2f0bf67f42. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USA371460181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277de7de04c6b6cf5e71ca975851171dfe8e0add052679b9d5efb43725033df. 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/USA371460182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dff4c2e0de1817b85162211985a7c08b87c134e9383dae8cdd39eed329772fd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA371460183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f672d29e046390f9d8b197c0af92700397183d3ee6686c6371feba2da6dcf2. 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/USA371460184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b30f88df715849be7765edaed7b75e89bc973fcb717d8271c45b8f432bd100. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFMG1477535.
Commandos Soundtrack Collection (Original Game Soundtrack)
Main Theme (From "Beyond the Call of Duty")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38641505eb31d400924b80da9e37a17800585aaf257fd10c57e3e86eb1c7cb1. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/BGA471408636.