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 0xa390d4f9ecbfcd4d782fe5bfe5407782a99b6dbc556694b654bb1fcd4c2fc656. 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/7d10e389-c2bc-4db3-908b-0e28a9f82dcd.json and https://artists.proofprofile.net/proofs/artist/7d10e389-c2bc-4db3-908b-0e28a9f82dcd.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 0x748f0173e42b82d48ba2a9d7b3d7ecc990beda8b8f56e6a72571c95ffb158b1c. 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/GBKQU1991436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1060a91526ebe4e907a11a10b6d0f1168009f15fa0e6baf3a8726631d5507c1. 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/GBKQU1991427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26832d30f2dac01f602ba86012cd53b1d3b7d15e19514799fb907a420e1ae316. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBKQU1991428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece18023a5e4d3c69c17c4e204dcb5c84e30e3d4740e889a2e8c75dc5f424182. 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/GBKQU1991429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321d54fe157941921e82fd2f4b650ad463112d0cf80a8188a6418f02c923e91c. 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/GBKQU1991430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6452391011174d360b616275f65482121182d2f84b2475269494b2a2d500aa62. 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/GBKQU1991432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0f30a1ae9ae25493104a939c0f7f28b72819415a8c219f02a1eea4f206060e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBKQU1991434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35605e8ee72d614bf4ba7f8aacbfd0ae094fd409476a0ee8f218a3226afa7203. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1831512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ffe2a876c4cd4156c96bf91188ab3c82a84dbda6ae24f313d1872ec2f865e5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBKQU1831517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fdd965111945e226590352b2b2e3573614fcc56346e7745703c92046b3ebf1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU1831522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa634a1b50e33dbdf679809ed781fd09d6905fb1555d45f1c738b4d03f2d5c1. 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/GBKQU1737064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb08180fbe217facf2577b8c64b69ac08b673623dc94e3c665efaef8c902204. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1737074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3622de1a922f5ec59ab7e24684d70b2b6663a2a6e39d50296cb38c1b06bee458. 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/GBKQU1737075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2691067ff4cdb1add61c79fc344f2ade94fced26f39fc0fbcc7c97333f056d9. 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/GBKQU1737063.
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 0x06aa38a3370dfbc211221c2f42a1cbf3b9345fda110bb3321dc2d16ba9e51972. 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/GBKQU2427542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2004c195f126291527de7f25cf6d7fc805f1d9896ce6d859d12ccac64ab477. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBKQU2427543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadecfd5a4853b4856fe4ac45a3d6b3f7375f89ffc7e9b48b0c5a960980cdc10. 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/GBKQU2418888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1654a9edf25edbe5f8c21b00fd6630fd89d1799d0635a0e3d89e33d17f68889. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBLV62317623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6e9f159aae978415dc2c765b2235ff63c6a4613314812f28f34ac6a30dff16. 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/GBKQU2380123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efebfb4239a3df99c62a436cc457ff79f473548788b4455288fc35d4d324cb9. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBKQU2380122.
What It Takes To Love (Max Freegrant Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec67c20d5c059d223891e91c01db04e4f74fa31ae4d6d9ae97720dd2cc83a15. 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/GBKQU2319171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b165bff34dc56797730a4eabc1c931d170fa8ea9424ffc2681a618e09af5ba. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBKQU2319172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4504716efd4bd57a72a2c919277e5369bb99d0b0ea1880a47a673ecc86806e2. 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/SGB502333042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7e058ab2385755588b63b0c9b18dbbf6fbb1f6d8544ef8713f52ff224e63fb. 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/GBKQU2306634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3f0f5a77b979f93a26c2082a10dd078a58e1ad35bac0281cf83f437496de9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLV62209498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42539014628ce85907d1602e33a9e6416f2ae327a01a81a57f90ae500c95a143. 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/GBLV62209497.
Reaching The Edge (Kamilo Sanclemente & Giovanny Aparicio Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6375b4de045e1335e58e12d9136467539aa9f961fdccc69d01c477afdfdcf46f. 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/GBKQU2294145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839f75ea33daa42ed116482b1afdd81d586e8ece0abf7fc1f05c3f73ee86cce3. 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/GBKQU2290482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d360f36da5855bbe4a4bb9fc2e39489fed4da12c63ffaa5f63de2ba0c9acb6. 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/GBKQU2283661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8659f857ef9b757a0f90637aeffb17d2f173fbbd36c3ac29c9368d4f16b89b44. 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/GBKQU2283659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e7e37b00ba7ce6d1f453bbabe4368d264d69b3ac6093bf16db544a57d362aa. 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/GBKQU2268944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf457a13b3b610b1c1d07ce1734606c0408b70486dd92c9a1f4674c0efdb57912. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBKQU2268945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc43469e5254c29deba2d16965ed36eb3639a06873edf60e07b60b9380df72cd. 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/GBKQU2240344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a536829f5a5885da9ab1948801aa1b62505914e21c43133089a9b698e107a7. 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/GBKQU2224574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d847a6a9c6dff1fcb76500f93da801bddb6892bba53aae548c5c5440f2115bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2209114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52071ce42715f8bfbf97da15ded32bf912501b648a3e665a7247a62009c64491. 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/GBLV62101951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d598abc856b4ccc4cc529618d0a88c3be8822348467ec10504e8480172b8657. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBLV62101950.