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 0xad2c13a40248d28cccb4dd1a0ea0190361f926c1429cec3bbc0301fb62877a57. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8203a8fb-68b5-4bf3-b41e-42c6f996b152.json and https://artists.proofprofile.net/proofs/artist/8203a8fb-68b5-4bf3-b41e-42c6f996b152.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 0x4f60ad05c93cb6058c79b307ca772dcff5610c72fd5f73539d48452b2ddb7f81. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/NLD682101627.
Shadows (The Sound of Without You) [F.G. Noise Remix]
Shadows (The Sound of Without You) - F.G. Noise Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f6549099656b2ad9719d582800c079dfa355b44c19501de601438b2227cb2f. 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/NLC732100458.
Shadows (The Sound of Without You) - F.G. Noise Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea787808f4057adaa1df48d7ef4be943340785c338a57a8efe365479a7ae78c. 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/NLC732100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e074fe846e2a19f6420dadd88b1efdfbb2660a420ce3e0c6d6e3fff170e9758. 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/NLC731600325.
Initium (RNMS02) - Ferrin & Morris Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c37595d73ceb1b32c882f2ff246e69212ba8253405199e6d5b956a05174744. 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/NLC731600326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e370ec1ddbebeee1c46438304380bccc1d12d03c08e674515b0f4325bdb00b. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLC732500155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c4f46389b96c62e07b9d0eee4047a437f9cf31524f747ddfc67656f954997e. 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/GBLV62319725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b6ad431dad6f6057c8b17bc46b1a205332e2d2c66f082a2a3a1da348c7148. 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/GBLV62319726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206dfa1fafd4fd199fcfcbcfb34c29ba93bec946b014981b17c6b6e5538eddb7. 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/NLC732300229.
Unbreakable (Through It All) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe023831f58c16cc0bb1e1f507f2e38980eed7d9071c1a1d0a200385abd70a434. 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/NLC732300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b17d2748d062594dedbce4b84ab97d0bc55465becb942f3f3b4af8f38bde7f7. 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/GB3W42300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d0ba411e44eb9382fb1fcd832543116c85b07f57111cfa8244d145ec9d9dc3. 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/CH5012100416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1738d5595c45170cb995f53e13a2478b6fe8f9cbdf4c160b1edff855921ee17a. 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/NLC732100411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74568de1e8274ee9e5d09016b03d03906e8d04f4f8c5a28aa1c347fc09d81715. 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/NLC732100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb096e20e7247ff2ce44c56b8bd06ee2d51565e09245472610a0f145eb8a49a5. 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/UKRMQ2100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0cae78928f8e2b7799967818132969890a4e3e26e5c3bbd607858f366b075c. 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/UKRMQ2100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49d46ebb8eca0da94c89b0a571ba7c33adb9025921f1a33b3a1b02aa2cb3322. 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/NLC732000515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb41823183a156f2cca10578c5b64a3701e18bcc07cb77a1928129026ec9f08. 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/NLC732000516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e65127357070d29316cf1042079f721a0ac316607211096d754a146678e7337. 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/NLD682003492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72740fe145f7fbf4053332154a9fab58e378dfb0aff0be959566fa463ebf6d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLC731900624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2de0c017d8a7f7259fe092f27fc69e39c4ac2ca0a2d104081a80e8ce094030f. 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/NLC731900625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc2abc20da0c9d0a3c38920c63eeb4975bca5093da218b86edd8ba03997e855. 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/NLC732000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd66ce6f6811509664c0d1baa0fa5d8566ca849040c94bb8ebcb2d0ef263f30. 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/NLC731900634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413105d54dda013353bd6134f4b5cc10ec6be1586eb094967444cf21a904eb0f. 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/GBLV61905987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb672205e2def57ba6e578d2131e71cc0c1585e851221ed48c98c666504f6b4a. 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/NLC731800688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f503b8234c3af784ab24ae7766298ebdc8f50c3d12b328e9d267a8a17bd211e. 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/NLC731800689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d45346e51b40e972ef81bf15525b902dfe933b404e4d69163fb98617596ed27. 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/NLC731900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bb9241756787657f81311dfb32ea247c5d2a3d5d8e98115299aaab7fb9d83c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLC731900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f44a164d7e66dc8fa72b98f5bef05109672b2d61bf0e580babc26dca5ddde7. 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/NLC731900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e7d7a30838c5975631761db67a6a15f18df854daef70677136467f9fdd7a96. 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/NLC731900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb469419c6f1dce0b45064d9c86ec36057fc0f019f78a87883a4089f17ffd0f. 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/NLC731800653.
Waiting For The Thunder (Killing Time) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859eb976d149ef0a59ee493e48672c05a356a65901d2f75782deb952d2eb555f. 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/NLC731800654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4668476e394fbedc6865478f083ca6a2e0e792f10b62d603ffc7665941c0cb08. 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/NLC731800463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f2de2a47e12ceee17120a05f2a9980a09cc35e91fe490391777678264b3a7. 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/NLC731800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ec35cff6acf58d0659c5ac0120cdab5e06f2ccbffd26751cf193e5d5063de9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLC731800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb942f933702063171c0fbd85e782a58629cd814a179ed3e1cb4fc26d1fad12f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLC731800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb356c0ca81e375386777a8ad7d511ae857e030ea562aed31d424c85875ae86. 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/GBKQU2184010.
Nocturnal Knights Reworked & Remixed Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e557952e4e021d4714c7ec87d5fc6f64052c5affe4556a834e4dcd0731c10b4. 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/NLD682004077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209ae27ee287a3472b1c830863380044a30b612b1749dcaacb3e286f731c2d25. 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/NLC731600209.