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 0x5d6ec275c8267d3601e6abf04ea3122f697f9553f7e3e8e5635e57c0084be06c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4db3bce6-1d3d-4a78-b3bb-c07c5c454de6.json and https://artists.proofprofile.net/proofs/artist/4db3bce6-1d3d-4a78-b3bb-c07c5c454de6.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 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 0x15c394af7ed94021a24a376bb98078df60c2c07861b0ad507cff2f331d42326b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BXLWC2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b9da8942decef10a0ace725b71abab588872da9a2a57986d7eaea98628c4d9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BXLWC2000003.
Battleground (feat. Jotta Jon) [BRDI Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d91f8a542cf353817592da2d87a83414b7f3548a0f07dd8635cd661be5ed25. 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/BX2LP2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996305636b92e1701d60730705a5b08fa1a75da58c778922d659512a21999bd2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BXHBP1900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3a1fc496470ec15e06442f1da715510f5d478786b439544cfd59193f2aa72. 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/BXJLW1900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26612a045253ef94811fe026f6e3dc6c2ac208c2ef51a0366216024092f683e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1900176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135f84bcc254cb3fd5835e63b24023399a4379eba0bfbeaed3819b95681f1f8e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX2LP1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc308497d9aa7a12483b26551243ba2bb879477effbd6aef158dd26644282a263. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bd72216b26af5f755a33e06e46a1033f33461b6611a0cde3d4e94f3e1d1264. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX2LP1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe875038096c545b58a9cefcf577469213cce3da54e886ea19cb5675be0dd16ff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX0BA2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e356b6ac75da5ea17259756b29eeb4fc77cae2fc135a9cfe6cba463b4569917. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX0BA1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5237c91c407969059b76003ce1fa76b2d00c1b17f6d9ac93d2a37b9de4170ab8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BX2LP2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1ce6d564efab5aab41144b530e11ed170caffdb83417a41b64d62f7d710dc9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BX6VO2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34701fd7afc8ed308c9ce2bdc0eefc686039df59ba34770a682fc5c3a18607b8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX2LP1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f6d6dd2136884115d2f4b88fc17fe3da6fa4174baf46ce50f8c20ddc41401. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXBB91900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79038ac516c44927bc6fec8271b12ae1017c2516177bab797c9af7350e25d105. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX2LP1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53deb5871d40ddb2f846c003857c011974c90a24033be1097042b83bc48b5d0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BX0BA1700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4dc011d4e6de5ff77c1bf9ac2dbafda6984ddecbff4e93b9de0c66ee255cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX2LP2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375a8da8124569b6cf929311a1aa146d8118396c6dbaec3745cfc524c9380ca4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c343c298e384c8f5689d854e73a7706cc36dff59842c690f36ba1997a4da3ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX0BA1900200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8badcb3a14d12a75bc768ef1dc2088f2b7611542fbb3715af204d446fda42023. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXHBP1900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d2feb08a534162703c18c19584cdd85b96afad2b7c04b285cb0c04fc8896ef. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BXBB92000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58371aa9184c2830ac1c1e29a2f042f364d335a0cea09b63b4703394cbdea2c1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXIED2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea07643b8a72e29d8f76072233a7c6169226d0bb1d8e8d214187074fb8016a5b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRSME1801814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a32d3bd4a3fd8d2512a7a39b22269b37904fc95fa661a7168bb3f9c2990c9bf. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/BXBB91900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fd38adf2683daf96ebd3c27a6621df61b4194b402e9590c9fd7e5dff96a262. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXIED2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66385433f3f59856cd67e217e5cd860b5b16ba053253c3273c4b4e8cce96f1c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXSQU1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b9da8942decef10a0ace725b71abab588872da9a2a57986d7eaea98628c4d9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXLWC2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7993d7ef565838735cb213efa1489b54dc3c89eb9f1bea18dd2c8a6fb4d1356b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dde0937072efc10c63d104c2211fa1cc3d2596b0712b988eaac4c6cfcaecb96. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BXSQU1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5de230cbee7c377358dd9db527ac70e3c18711723615bb0dc61cd1cf8ab6be. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BXIED2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d1030fd404952bc0bde851bb36ac9d8146cec4200526fc899adf31769c0bf2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BXLWC2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2c62a87c0466be8464a0608b9beda653a03db6cd0fcb94c77109630f78c89e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1800207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e3e4d55522aedc0bf82de4244a0d8f2571518ef6d0a4858e80bdb9721277de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc853a9bc1d52376f33a9579dd98f1912bb1349857f08b41f337424857df864. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/BXSQU2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0525ff16dbdeb645cf9b191bb09125bfc9ac92a7e0eeacd05422b01bbbe3d97c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEE861903954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808bb8315bda009d62e747dcd8fa2df36a5dc69ac28a4c66e3556a816b6158e9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXHBP1900268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5268b4facc377542b6b173a3b8a1cbdeb6588219925f1c997e31d24316d8fa95. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU1966114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1660844cf899cdd5f1d7f3db2da1c64a2540803bbbbfc90e955d66571fd04c09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1937142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a74f19e8b63a25f134a04ed3c4c3d06cb1bb049807c5becb3a012e7e59824. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1905093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99650838aef33ec4933596ba900c82d1522f7a48c8e9622b72fcc1fbdbc65c67. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH3131901453.