Sleepthief is an American electronic music recording project formed by producer and composer Justin Elswick. Elswick began writing music for his first album ten years prior to its release. The album w
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 0xce3eaf5986f194b6abce4b494d0385b56a275575ee96d3876042fa6829f96d35. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3806a981-9329-4866-8309-f0d91a243522.json and https://artists.proofprofile.net/proofs/artist/3806a981-9329-4866-8309-f0d91a243522.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 0x540d90efc6d6815072ba9a57e998c2c407466d03ddd47e0895ae215066777be3. 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/USNE10600169.
You Did a Good Thing (feat. Nicola Hitchcock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cbb9f1b9360a81f2f971e2f2f1e36185fc0f906355b4877ab0b1864ba4bf32. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USNE10600170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36f213a4061417fc87776d90cfb290274d6c029f9e0bc824a02dae3bc2842fb. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USNE10600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132a87bbda43c082f8c642d8fffc9cd32ae73286c57afa71695b75860b6d96f0. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNE10600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f61777a95faafbc9220150bfdbbd03ea9d96547afac31b0a2cf8da6f8efaa4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USNE10600173.
Sublunar (Sweet Angel) [feat. Kristy Thirsk]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0375f56921fe4c5d3f1a6a48e572643fe4a710848857c8305130babce59e9af0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNE10600174.
Eurydice (Psychosomatic Remix) [feat. Jody Quine]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1a7c43788076d7a12cab1e05f082611ed2525f6239bb317c81de8dd8203897. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNE10600184.
The Chauffeur: Remixes (feat. Kirsty Hawkshaw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536e3b877b1ae49cd2dd24547a7b28627dd76b536bf7506a5573b019389ac6d3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNE10700056.
World Gone Crazy: Remixes (feat. Coury Palermo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0a13de853f1b6be42da7b1803b774b3619c3d2a27131cba2b1874135a17d0d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US4ZE0900006.
Reason Why (feat. Coury Palermo & Zoe Johnston)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cabe6753352f7c7ec7bbd59c64ce1f0b838b7cd387ca5641956156419f6428. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US4ZE0900014.
This Means War: Remixes (feat. Joanna Stevens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f53c77a69a2ef9107e0f8a5ea5f46127b813ca1c82f8968e54d03e8016d80b1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4ZE1000058.
Dust & Cloud (Matt Hoffman's Pteranodon Mix) [feat. Phildel]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8124bcbd620defb3af6d6b205168e7dedbe3214314c7211750ffe50c5a08aa89. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/US4ZE1000062.
Just Say It (Aethervox Domination Remix) [feat. Kyoko Baertsoen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc3a9cb9207bb4a91ee66a37e5db87fd8be5f672136f283d869d5b5fca417ef. 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/US4ZE1000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5031ede14b34cc369dde422af645df28026fa3a0051c140cf32ca990026f18. 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/USHM81821400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e489a7b09a022ac1250e9296f9f2b980ccd941be5802d3e5398f7a01435b59. 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/NLC731900468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf867a2069f3348f3045915518c1aa2a50d12a20f4beed874ce9f78e2a7891d0a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLC731900469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6dbc86c57cca7c4ea9cc9200c2fbce60ecdcd2e24ef0c1d2e99a6e3e810d3b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLC731900615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58a650e0efb7eeb19c7e788f0887be017e4d89cc129a6236d91d33372fa7837. 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/NLC731900616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2046a65b80a917551478c5d307ac573801781e2e30bedc35f7cf8d6f52c7930. 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/NLC731900617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e489a7b09a022ac1250e9296f9f2b980ccd941be5802d3e5398f7a01435b59. 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/NLC731900468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf867a2069f3348f3045915518c1aa2a50d12a20f4beed874ce9f78e2a7891d0a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLC731900469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcece0c71e4a9b4fd3480449da89be0ad64ae93f00cee3d95881b963dfb2f60e5. 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/NLC731900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82c088c8ccd7ccaf5ffa804c64e66bc56cc553c0e3d4328a7afee17140464be. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/NLC731900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6dbc86c57cca7c4ea9cc9200c2fbce60ecdcd2e24ef0c1d2e99a6e3e810d3b. 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/NLC731900615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58a650e0efb7eeb19c7e788f0887be017e4d89cc129a6236d91d33372fa7837. 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/NLC731900616.