The Kings of Nuthin was a 7-9 piece American punk rock band from Boston, Massachusetts. Founded in the late 1990s, they gained international attention in the early 2000s, especially in Europe, for the
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19004c47b0f3209d80379299d428a4c6e1a5d1bae8a27be0b97e4d6e1d34d452. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff7eb141-869e-4bbe-bfe4-f1f2399f84c5.json and https://artists.proofprofile.net/proofs/artist/ff7eb141-869e-4bbe-bfe4-f1f2399f84c5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab51c3a0a6ee7d31fcfa426db09c3667415a2553090b6368f524b62737ece58b. 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/USA370381712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48266377cff42bf7ff37f9ddfcbb5992d331cf938b27c4dba56c3d4646240a7d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA370381713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f62048a2ee2c68c3f7858cece07a019e3a785668fd3dee8c7fe3a2465a94c8a. 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/USA370381716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bb923c83713d4c58cf17ed3e9ff5f2add6bed8df758d7124771ebf7f06cc15. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USA370381717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76d319311137834fd6708a242b7db3fab91aac77595dc2744cd17fdbb3ae13f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USA370381718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dfb8bf83a79330ba0ef58a1f33760a68f2d7b380ac5c467257971798fe348d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEZ180510402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c7a7fa14cba342783cdcc05560287506a7444aee40407a8f4ad6c097e7cd6. 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/DEZ180510403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38edd2cbbaa56caff905acd0a7c322afb32c70f6e5ef04e1bef6b0c9de941049. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEZ180510404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315751f6b6efc46562813bf0f1195241d713ba3ec0492d90a2be95fb5128ca8e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ180510405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc245b583a4f3c3f6006b187e654d5b9c409af5478047ab030bb5b30c9eca1cc6. 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/DEZ180510408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ac3f115009cc04766e02d54a1f6e192d1879488f5a7491a12febed71bdadf5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USEY90600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6ec0a8bf1e67b39a18ad2698ce34377d001d2b5adaef75d41feb80af3fe388. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USEY90600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cd80aff9fff725832ebd9ee9bac83c43bede786dceca877cd4525ebf298ef3. 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/USEY90600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc339bd07634eb68fc3abc554c25211e55fd7cab02e1cd2007329dc027b3bff. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GBDHC1020801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914f77143bfbf729f0bac5d239cfacad5af46bcbc42c7f5b834162498cf18744. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBDHC1020817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbfabd42ea6757a4d230c0d2b6b4a1ef33f4d453b5beba4cee6298b269aa0fc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEY91001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ed818129ac92c19d918eec4c3d966d879aec2b627adbe8dca61a86e655f866. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USEY91001917.