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 0xaf1dff600b0a4bafcd996910ac2224102a65764a020793c7aa4aefc9602dd31b. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc70b3b1-80f8-4fc3-87a2-00c19c80be76.json and https://artists.proofprofile.net/proofs/artist/cc70b3b1-80f8-4fc3-87a2-00c19c80be76.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 0x51b06781d3d9722044049e3ce923f76e2eef98d44d83ac766b322291afee7488. 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/AUZR10700677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e9a91393ec8df678f05d0297d6724fac4e2bc97989958f9af499f1b5d0b6f5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/AUZR10700676.
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 0xb820ebad28338c5e55b2f1209cd345df7cafd61bcf0285d0b5b67f3a7596f5c5. 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/AUZR10700357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa707f2ff4d9fcb3886ee75287fe795b9df025872041b55521d9d7ab9a004c5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/AUZR10700358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7063b71d7bec36590f1f82d17d1323626c488a0a58967732274911a227c2a3. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CH6542011914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb831dd461459d2f3363192b4d36407e4768a7d8f0f1ed98f7271e7441a6b4221. 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/CH6542011912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a88b8e5073c4d99b31b4690f177ead7e221dc2b67f109a1cdd549a2c02fdebd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:53Z), 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/CH6542011913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7709d2eabebf5059a6a8b5a7c1f07a6113640597750c0a05c6c7d8bccb873b6d. 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/USA2P1426448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0115a452f602a3a215950b64c001a69d55b6724051a048fb43992ec22304a383. 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/USQY51519116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee74d6543c289a03f8e7a05dd8d3f6077ebd92368a82cbe7b150bee91cd7c7c8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USQY51519118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce649bc8e5a9664888557df930bfcd593ebe67783f41766c8fdd05d2049458fb. 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/USQY51519119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2132cf090f81433659a0cb0d48a86701745cbeb03479af9f977d93f845ac9528. 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/USQY51519120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8808a0e1252d864fd137d7901b5e996cf3463ee92be5e8052567134c0462b2f1. 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/USQY51519121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45461f737a2dd15e22400740d7f9624d36362d23303749f5709d712113453d3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USQY51519122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd684a0e48a59f6e5d22244ce0421200f9d62740b0e576a34659796900c3adbcd. 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/USQY51519123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b3e5653fd84c9ef746791f6af661aeee701a24be1aaff373e5cf93e5c7a24e. 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/USQY51519124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5090f516dc0a3a448ffedeb3b719ea4ec0b14f6b682e25e662a3cee47f322347. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P1815638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4654d40f063f1d43c8b288f2a4b7f6886b68edcff08b6b36d837a9f7439919a. 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/USA2P1815635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c622cc81f2bd7b730d3b61a140e49bf793441d8d411426551bb4c35dd4d2e6b. 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/USA2P1815633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9996e2d5a6867f300863ea45af9d647dbc869468f8a9ea4367df19ab48cfcb01. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P1815634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ee0a01c7072f89f13da079c3e94839acd663011e980c7986504a779c6112b5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA2P1815641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2b9a853abcc78a5476695dbb5b726f76ae04d223af704f1994317c09e6b11b. 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/USQY51754416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aebcdce5401bc57c6bcb7ea00d2bc52092aa540660a03e0f9c85adb32031dc8. 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/USQY51754417.
Creature from the Lost World - Mandragora Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d7ac7545f41e06574cbc92cfa26d1f9f408e7433e2af04c06a88b47a294b10. 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/USQY51754421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c50d3e72af27469f50533a6ab3409d3d6035821a57c932afc1838834c7540b. 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/USQY51754419.
Creature from the Lost World (Silent Sphere Remix)
Creature from the Lost World - Silent Sphere Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a7719bb43625bc10b36fc90ebf39bcc5660380c10d96194792e12ffc4cc5a0. 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/DKZVA1862020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0950cd863f13528ab4d8955e1945badab4ccfc38d3e3a3296f4331db860ba90. 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/FR2W01600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d30883de88f3e7ccd3ab63f0e61e38acc5a18cf5a42579a3705d379973d543. 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/FR2W01600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82371cd67eccefc5878eabbadea663097b2423054fa93c28cd3af9d9a18701f5. 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/FR2W01600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d81f25c161b9f83e601516f1b7583bc4a14a982ecc82ea2d34cc98d147b5a06. 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/FR6V82339193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c339c0daf21a1fcca52f7cf5c1a98685b1982dedecbe2bae26b33fc4d61b881. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/FR6V82339198.
Creature from the Lost World (Jordan Suckley & Sam Jones Remix)
Creature from the Lost World - Jordan Suckley & Sam Jones Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee0d64739e149753b32f560d3942e5a95e33568418c468300253961dd6d68c4. 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/NLD681700841.