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 0x6032a9dabf3461f6b1b66f73406395fe3a619fd22561998b1e31fbfa52fc42b5. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56516abe-613b-4c9d-b2bb-2b1d9852c90a.json and https://artists.proofprofile.net/proofs/artist/56516abe-613b-4c9d-b2bb-2b1d9852c90a.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 0x5473fc377774d99a4af5431c47fc2ca9484efd2cb1b07eb23ba36dce1a424c97. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/US4W71300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75de2ce55d9a3874f83a2ccaaab825816afad5d39956ad07a535fdf34b0696a. 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/US4W71300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585cf707718e44d345916affb6986ae8e56f9fdd54b3c998c1651c3d0a166bd0. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/US4W71300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d71027e2292d020ee270a117972eb4d3627491bfaa86892529d0f8daf1d93e7. 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/US4W71300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eccf0654cdc5015764807386c158af8f58c1d16a4b5ee7fef38e7bbb00ba08. 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/US4W71300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9965ae658671f5eebef7c30366d9c91b30c78296b2d9eff63f3f32f86438ac. 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/US4W71300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43e777098a4b025471efb8bc67fae94a3a019b95dc1cec5029645197b9dd5fc. 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/US4W71300066.
We Must Carry On - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a591c3b9753062b836e5b403bb4771964ce9f30ff067b49723ffd799a1b468b. 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/US4W71010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510b2b824e2a02c64f31726365f20e496f8f4cf017e5960cd93e2959f7097ec7. 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/US4W71010002.
It's Too Late for Yesterday - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e75c313aa9cb3e87db264110f64675ee96d1680007af0781b45e5899ed2feb1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/US4W71010003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c7bba25757c2658bc472c36734ac51642253ab3d65db5adfbfe3c28cbd4322. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/US4W71010004.
The Wicked Are Restless - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41e2488cb682458228bc301a37d8d45815dd77553290dc4b843cf13e65d5bff. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US4W71010005.
The 7th of Never - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dd4482155ef18d2b1e8e91595b08df847ce6e75fa3f08e1a06d2fe0c901a5b. 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/US4W71010006.
Take Me Back in Time - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349327887cd1987072d47b66f9d763de9b6923231103977dfe7b3c7dbc642acb. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/US4W71010007.
Feel His Magic - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9232402b327660e2a0cf45956c2c205b66b9126579212551f8fba8fa48399e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US4W71010008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e1ab51aeb9cdb705ad67d38cd2733fb30b6a23d7e870ea108d2ee198900775. 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/US4W71010009.
The Voice of the Cult - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c46259c4b476cf6f0cd2488578589522819ca3a12976af68b07a52088ba784. 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/US4W71010010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10ca4e884bd18dc5ffbd1a471ef7e54c29522cb6784b40c9fe425c484e9ae90. 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/US4W71010011.
Chains of Love - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a79911577bab264b15d4dc0ea98f1b2ef754bf8bf299796c255d338420a978. 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/US4W71010012.
Share Yourself With Me - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc236fd1a9d8748c94a5aec62339b05a0a3310e76c5797effa152a9a7d22c7d8. 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/US4W71010013.
Fortune Teller - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a9bdc70f3334f89965d81f5352f31c47e72ae96bddab003890d48d6dc1a744. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/US4W71010014.
Child of Evermore - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8647de01c27eda3f491aa324fe5f24ec0b33acc1ab67edb515fd275f40e1c7bd. 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/US4W71010015.
Soldiers of the Flame - Remastered Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e5d1f3c670fb8eaa3b0f20992b9af98db8e33d66bee8f845ac8f4bdf88c84b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US4W71010016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ee66b47d11cc40264ab76298adb665f475482e65148fb541e950d8b21602c1. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/US4W71010017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1810980ee70d8755a41734e21efc8aef907f54cd438e9cbe74e9ee060543c68. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US4W71010018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60fbbaca09c43350d706af9866e59afb2d34617280a4b1b8fe640e1a0c6702e. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/US4W71300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b1cd1363bf746d066df6542de60e3a7f36b9f82bf5d30ae18bdf699ce3366a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US4W71300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150062a791653e4446c6f2d760379038f6a16a7fc02b5fee5fd019607a492fcd. 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/US4W71300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0713aa8ebbd0eb41013a535913973fe1a5bec0b11b711e67484a8d2c8db75. 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/US4W71300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bb9797ca62753b5e0799cecfe044718a5ae8e110902c40dd3ee27bdf59a2dd. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US4W71300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5437565d8073966948c97795066d219fd747afa024ddf4d41f32e6ee6584d315. 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/US4W71300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bccd0fe430c267a7883af8cf3f9215d88b2477a0a4852cf2b0094b17bcfb3b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US4W71300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d5fa21cf219b145589f9b9d354dff5796bc235d14bfbd012749a93b8e272ab. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/US4W70110443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c0f7a06f743bf1210da5a1ed7023450ae73282078a830980d182e22f74ba87. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US4W70510755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e8c7910104ebedf3a0276d6eadb7682a37880ddf03ac1d94bbe21de0bf3c11. 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/US4W70510764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b256c157798af72197fc896d1ac56c4c867db09f3d15c003e693f01c974a18e. 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/US4W78710404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c3e97311a9e697393f02d1625971895b37cc1879a4f1c8aab28c93045246cc. 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/US4W71700502.