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 0x3c53b2ed68de27ae60a7f8ba5b1539911e20a007f49b2f9629e01c8034960c60. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39ea38f7-a50e-4bef-b692-0bbf7c19db8f.json and https://artists.proofprofile.net/proofs/artist/39ea38f7-a50e-4bef-b692-0bbf7c19db8f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x7e7bf2f274ff63c335c6d12a995bc59ae9b53770e2a7590c184947ea6123ad22. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81907999 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bff2a912afa1c4bda94e81edf9271b43ee262400392ae6b62e565c5479367b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81908002 — a six-check JSON result.
Madness Is the Beginning: Beyond the Darkness of the Brightest Gore
Suppurative Necro-Parotitis in My Dying Little Girlfriend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d687a66505eecf17cdf690281ed2ac5fa27839fb6e6eebc868f4aa8fab7a0d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2196610 — a six-check JSON result.
The Stench of Organs and Purulence Rapidly Decomposing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0771ba0a6e1f874e2629f460832dd0dbde178ce5cd6e1d647876421bef25115c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42524931 — a six-check JSON result.
L’isola Maledetta - Immersed in a Formaldehyde Coffin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a7884305c1ebe1d6adecd42d0945a74ad32ffcd45d27e47f4f03f2c4b1017e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560102 — a six-check JSON result.
The Fragrance of Pus-Filled Eyes of the Dead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a063d2152c75a00c95a33d42d0a4edd0eb6746d4bda052d0a318606f081196f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560103 — a six-check JSON result.
Regurgitated Entrails with Intense Mortification
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c216b6a602a34088c75a308616170fdc04a5a6b8874aa82eac0054bb98d9185. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560104 — a six-check JSON result.
Withdrawal Crisis - Through the Keyhole of Madness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea2f37fe5bba0fb05a930059d34994b14f41e509875fdf7644e9371686637fc. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560105 — a six-check JSON result.
In the Cold Room of My Restaurant, You Are Dog Food
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03e6f0b725c5054a76b7eb1a8df68cd1909d5c86bd94465f8c8b4520673ca8a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560106 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f3bc01208987377475ce0a4b6455c43825da4a7041847e4dabd93306bcb2d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560107 — a six-check JSON result.
The Slasher in Black Latex: Acrid Aroma in Tenebris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ca04178b5a48388edd0cda02e9741f973d40a5e86eaa72d95e38da936336d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560108 — a six-check JSON result.
A Prayer from the Filthy Creatures of the Deep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207921982e6cb040d57298a1982917dddf03f97a1a912778902a129f774af96a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560109 — a six-check JSON result.
Interlude: La Montagna Della Dea Cannibale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e827df3fb920de6a061d4f254935337f274741fc28ee5ae9ea5ade29e9d0d8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560111 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838c139f802a52782363c23810f089f2205d517ab4462a0338b3c48bc4cc6122. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560112 — a six-check JSON result.
Fucked by the Shovel, Thrown into Violent Screams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b0c4275802c51e91afd44e569c6c53860063e22295d3fa0803fcfc9f3350e4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560113 — a six-check JSON result.
The Final Feast of the Damned - Tre Passi Nel Delirio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ec0a1e58d2ecbb9871781bec94e6848bfff6edecffd39614c8330927bfcaec. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22560117 — a six-check JSON result.