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 0x483f16f685ace16fe76d83c15855c65f6ee6bc265432821e5f06fac107909202. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a761c49-484e-47e8-8959-d2b81d359dab.json and https://artists.proofprofile.net/proofs/artist/7a761c49-484e-47e8-8959-d2b81d359dab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Diary of A Lost Cause (feat. Sicktanick & Razakel)
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 0xf04754d0694b3488034933608537fa7e74e834645ba1571317dde99be423ed46. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USCGJ1059360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b37fe708f2982861605ea1ca11441eca7ae81ea8670f6e3e88d9a35d9eee6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USCGJ1059374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043f1ca2d8897548aa6d0278e4c939a73d85842c4e175dc0d9846fd893442478. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM21260021.
Born Inside a Casket (feat. Razakel & Leaders of the Lost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45ed48fd2de005b02bd80d71bbea818b36ab5e2597b62201532ea026643f046. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM21260022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c49e7fa2e0733fc7706a0240e0e30399ce6dfc8b79cf6aed03db04bc7d236c0. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/USHM21260024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c229b28ca73257ca396d186af0983474daa7bcb023d4d56e212a1357970ea3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USHM21260025.
Toxidermy (feat. the Roc & Mastamind of Natas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd566b997020281f3c7e91e40f815f746933458f6018684aded9922c8e18df6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21260026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66d92cf59cc2f4e42f54535a8fab186daf2b235c45aad747b00e21b08882977. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USHM21260027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3167628e4d90fa2739cbef1658a426ff71b5635b443c2b3810378706ddec48e1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM21260028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238dcb9ce8a030b28c4c4d460105020775b675f7a149c37b99a552f38e493d55. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USHM21260031.
Fuck You, I Hate You (feat. Mofoley & Ikkurruz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a216931bd3fc33baa16c365f99b4eabd0c6fc4d3a69cd33ef1c5273fc3579. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM21260033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2659921f5858627e538f32a590c1e8543fd3b47d3e66040e992616d043ed2f0b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USHM21260034.
Tempting Torture (feat. Komatoze & Grewsum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada8440e3b2d51279762df2f6bb4c9d1dbe2443c8e4b48ceb8622213e7608f0c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM21260035.
Wat'z Worng With Me (feat. Raven Delavega)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee99b70acbb6bdc54433645fdb1c51e29ad1e5a55a8240a69a454036c599cb77. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/USHM21260036.
Walking to My Grave Again (feat. Magick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47f975ae27ab549f7733bf6afad106a023a2627316ec6d5678bb5c72632fa01. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USHM21260037.
The Hemingway Solution (feat. Dope Fiend)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce841d7b7f6bd1f1b6b20cdbcada2173af2ec1f547f051d28b9f24cff335f1d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USX9P1320111.
The Real American Horror Story: Rare & Unheard, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3c3d3a346a432abd5d83afbe61554d104ea9248670da1aa513e051e93b5e26. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81471638.
We Are What We Are (feat. Koopsta & Sicktanick)
Chapterz (10th Anniversary Digital Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0eec12efe4f3bf08736fe48b65003942aabbc6243a2fa905078f2206704586. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USHM22078592.
Chapterz: The Lost Pages of Eibon (Rare Sessions from the Witchez Den) [10th Anniversary Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d7af0ddf470e6a28fec01d5a6442e2a35a647e4cb63806264d6c90933718a3. 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/USL4Q2061818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37736ac7f66f88c5e7647b26c1fc54ee16ebf3cde7d6be2b03f5a9b306cb804. 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/USL4Q2061819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807442c2e3661db21398ac96e226fe7a6dc16529dea4acb4b0ab4d0cfedc58a2. 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/USL4Q2061820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b4c18cbb8f1875baef7e968cfe431c0ee9d51a2a84fb7a158c031c3d12a145. 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/USL4Q2061821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b95cb53ce5406c7bc8029631d7fed0cee260801f8ace21529c8fe93b89ce8d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USL4Q2061822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f127c7b7b3767ff8f4c1db0fa9a414f45743f616bc4d0843190f7051904ae. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USL4Q2061823.
Just Another Death (A Cat in the Brain Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e75e438ea78636213992c6e63c15a17a4b492c3203bf18de55a5f990b5f24c7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USL4Q2061824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997c2fffee3db9556e8ab14d46cd32a3dbf9c82309b8a735c4db98570f5b9f80. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USL4Q2061825.
Dead and Dying (Stir Crazy Remix) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5988ac5f7af4747cb1fa74f69ac7c600e020ee57b898505a054e197bcb3eabde. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/USL4Q2061826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef42fb783a88a6e2f20aac934ee469eb3e56bbd6dc0fc659679ba8516452571. 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/USL4Q2061827.
Last Call (The Last Days of Pompeii Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8194c65f1eda2b58d4459dc3cd7c2a2c18c5dfe304c6f501d826dc32f5261853. 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/USL4Q2061828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2194ea693b7d8dce7707de30c20fff2ca76202ab69ea0477739d0eb6ce0b6c60. 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/USX9P1407883.
Dark Half Presents Damien Quinn: I Love Kenosha but Fuck This City
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52d824f25740846357ffbe7068ce6a68ae756633100204eb81c82de7ad6bf1b. 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/USHM82081322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54ae0c472c9147809d845dcf4bc1718a057773b90d985a660853bdc3e0c1e79. 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/USHM82081323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03ef5c9fcf42c12e0380e13330e8923f5c7ff2bff2118cba7f0fd78569f2b11. 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/USHM82081324.
Doing Lines with Gg Allin (Beautiful Bert Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd036113ff8732ccd570851322d1dea2dfa1701555cb4d938e0808004b59565e0. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHM82081325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09d1557acb5df69ff4d7fa607dc3311492ca7985aabdece2f41f7df2620bdca. 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/USHM82081326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50583441d98f8d350d3a529773d0268734d011ac3c45e2dad17a6138ddd0f46d. 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/USHM82081327.