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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cace50c54d11c4259ec5105d11a025a05812db34f34812480f9d8062ec0bf53. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6439cad2-e8f8-439f-b83a-c809085e9f5c.json and https://artists.proofprofile.net/proofs/artist/6439cad2-e8f8-439f-b83a-c809085e9f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Know How To Make You Happy (Technikore & Suae Remixes)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d13569fc27d1d36810ffea25bba205ec69941235adb24b36f946afcaa136c8. 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/NLF712307382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ba143f5ecd4b92b1e39274b64a59fc1c06aa60e6156ae5b181a8ae6c81a5c1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2532967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e885133fc525addc6f563d09f8023f8f9d2bad51aea2b7fa03385ac5bfef3f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBKQU2532956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd892b1227159242c2371e85f53d0366e2cb9cd78129ac094c228d3411bf53bfc. 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/GBKQU2527657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930ff0bb6bd821ef33ffeb94fc673d41197612421d9aee3bf8b80aa6db80554d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2519888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acfa0424b8be371764fc00fc0441ec49f24096a8d6fb6fb399d48e4f2feca15. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2505253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837a59f2e3fc1a7a52ca399fda3c0d5bc093b0b16874e629d61ec1021754dfac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLV62421976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8f14df74a991854ce7c0f4919939384dafcc7bc912516781b85b9518f21db. 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/GBLV62421977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f4687f600fb1dd9606ce4837d729e29e996ef4bb1b0cac5372fcd9063ca44. 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/GBKQU2477741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94543db83a85acf3006c237213453f389bb497f54fa7d3c4b718e1efd5e01e70. 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/GBKQU2477742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7a6a2ffce4c63d24a885e1ed7448761ed59f5ea59a9436c6d33a750c005592. 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/GBKQU2477743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ed411703299df9779f681b11e9031087e9577c2c5611db54a56a7ee227def2. 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/GBKQU2498391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d46ecfcfe1dcf8ec354974c98d13df800f87d2bafb3fbf3992220fd8e9f42cd. 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/GBKQU2498392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed69187c9a2d67467099705acdd3eb8be9cc76557db8a1d92924e72670deda6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2490436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e70dd48b42d382df96a9acf79066582b2342b816fac0658eb1fb451760a8ef3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2479620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cebfcd061a38fb46314763d7fe684f1c62527a4b70876262ccd1a79e59fef2. 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/GBKQU2382608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513234d72a6930073b172b592d5fa2fba8cbc20258a86666e14bf0e155dd7413. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2303657.
Magic (Remixes) - Bounce Assassins Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d4aa56e57b55fb820845e42c9337d37f62c907c36023cdb741c07911cf3150. 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/GBKQU2289916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad138a5b48848f26d71ac3c9243e2297edefc90d9e2639ba4499ce0a1edb63. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2277537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c4fb28c57ee1abcde53129b6e98c44161e7d169e1b6e237c75d6ba792b3084. 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/GBLV62024218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2688c78a559142c77224a3c5f0a192f3b6f26c4eac02c17fdb40f9a6addabad. 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/GBLV62002992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8983e58a0dc5a8cd64fa26f0fa39c5a0daa009f16a6d3742a7dc1e978ffbaef5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBLV62002987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5913deb663281b86384bc095abc18359bde69cc56b4f8638eec900c9f48f60. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:02:11Z), 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/GBLV62002977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6579cf13b60cd93fcfed0d5fa44fc368d8f62721c38648d40ae94025af8726aa. 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/GBKQU1925685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfbddce32d083df0f4700aff5904865f4649b6c3fba8b098c3b787c7f578c3a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:25:22Z), 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/GBKQU1817352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffd417bd282ae6906a548dc7062a7866f17658cdd1f0da5d2b8b80fae305107. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU1492806.