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 0x0d31f5e5a8eefc95b0b15d58f6c385dda6e01e00a161dba27b8f6ed010687def. 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/592c5e19-0439-4277-b971-e6acf6b1fdfc.json and https://artists.proofprofile.net/proofs/artist/592c5e19-0439-4277-b971-e6acf6b1fdfc.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 0x46781d0371cf5dc9bb78d49d18537ba6c5f0b4b41f3915ad82b9542999e22235. 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/GBRBN2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837324218acd8f72fe19f73958979f6a1c015dccfc3e02995b1fceed59ca512e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBRBN2200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61287e9e5f6e5b599628d860a7389eae1acec5ea206d81aa54829478e919b974. 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/GBRBN2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b52c49339250f4f68bc1ceb4c5b9eb8191b721d05c0176ebd2f3f87bddb4555. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9357e18f6158051c4df3cfd3be795d8ae8059ec7bdae02059b1d4e3aaae23aad. 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/GBRBN2200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fbfd4714bb2074fa117958fd1265d67feacb6bf5f30bdb2ba61e71414e882b. 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/GBRBN2200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd470bf4be2f057e7fbe0855556be9fce4830b4d47f8b23b9d610e9756965f94f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae8810c8308f798a18eb1356adf80925a62bd8b86c4506288f349179cc7efd2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae04e1270562e772cd2aa49db74da8147b01017e57b3f0d3f0fb59976c6167a6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRBN2100101.
Just The Two Of Us - Discotron Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab66466175c28b5dcf0226daed1b419457cba56f37864c9374fc263ee8f0dc8. 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/GBRBN2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe686e49e0468e05100b54c24fd6292bd3e48b8b7963117b231d7537f7dc64c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRBN2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319f2d28a61498e8a3951bba9d65632f9e2bc8835badef424e3c442db416b5bc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c4b9952d0071494b33999047beddc515c017cdc567a623c6b2615258ed4a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRBN2000188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff8a4364bbaec30163417c7c46ac6aeb633e07f3663714277aa6a82ff128f42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRBN2000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea387e65886f9e44c8dc5a8513db1d7ed07446017c667a6453132685343984cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRBN2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1afe978b355bb939f115585fbc864b65a0317fbdd1a763e52d87ed8c867e423. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBRBN1900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ebd1f894e311a5574df325e00774703b06f195f23aa77f3f7be7c6c50c5588. 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/GBRBN1900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90041741e8044c643fe08aa3a0801ba5bf669ac3e02417ca7d10208e1a12cbe4. 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/GBRBN1900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cff90266e399c4843e484a16e67bbf803506af9689696d67a9440415336866. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRBN1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037292f753418f796dcfd85681353572ef80b16ea20c79a402f713f5269d9f73. 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/GBRBN2500017.