That Handsome Devil, often shortened to THD, is an American rock band from Brooklyn, New York, by way of Boston, Massachusetts. The band mixes genres such as rock, funk, jazz, jive, blues, surf, rhyt
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 0xa845d5456d715295fc97381353070fb81f02cbd427d5454697ffa39de30c64ba. 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/c049b1f3-2e69-4627-ac1d-85f75fd8a775.json and https://artists.proofprofile.net/proofs/artist/c049b1f3-2e69-4627-ac1d-85f75fd8a775.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 0xeca016a1de6800b9af772e8717c68865f8e0809d9071d9d0955d9905075856cf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA560805445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763c17d2cc88c75370b9a6046deeea44ffc35e01ea9aac1ce349cd3ac187b4f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA560805448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671f069ab45fa8b3cb658213201a8406333581dc998f1147a432e5c242ae3c63. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA560805449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dec4f0dfc7bc5c5ec34f7902c9e008ffb801611379bb273479cfcf460ce3e06. 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/USA560805450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f38866bbd4926360b0a5662a8755f201bdbf678caa2265b55592c9afa6b457. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA560805452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe88cdc3ffd9525694fd3bd0581c0107146352d863941828cd6b1b92b673571. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USA560805454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41c5d648230816954e930600de88d5ce72078332ef763e5caa1d0f3ba235856. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USA560805455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaad53e028bbc26e34f33f9e6667e2bfe889d9265871375978032d129c0a3ca9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA560805467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe88cdc3ffd9525694fd3bd0581c0107146352d863941828cd6b1b92b673571. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA560805454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d33f6cf513c3af098ddf4cec876d917e3577813a354861645de3879f75dda6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA560965704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdda463e0e5fa30f2e1a0ffa0d14014f40fb77c2c1745bf6b56a18e7e6c121a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:34:56Z), 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/USA370906990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b392ca5da687653a5fe58f1085ecbbb149762e02fbf71c9d0ef1985fb8dcf. 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/USA370906993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65291471af7548661b15231936024c531755257dfa00d2f4fbc80dcd847428af. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USA370906994.
The Heart Goes to Heaven, The Head Goes to Hell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08e0a67000766bd85b4d7e60db3fb4f30b81d7fa382c4fe93f301069ef4a9a7. 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/TCAAZ1184320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b14b7202659059a06667dbd06ab5369d085dd141f8c66d86840b5eeb161fe7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:55:24Z), 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/TCAAZ1184321.
The Heart Goes to Heaven, the Head Goes to Hell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459ed841694d3377c3f0f8a304aa5e5d9d63ee2265e73571bf57c396a45fe94c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCAAZ1184323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583b3375cac1bb7bdaefdcd61352fb0278a704ac31b11ec1e90cfb6b8b0228e0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USLZJ2575761.