Useless ID () is an Israeli punk rock band, formed in Haifa in 1994. History Useless ID was founded in 1994 as a four-piece: Guy Carmel - vocal and guitar, Ralf Hober - drums, Adi Elkabets - lead gui
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 0x0c198020e5ade8144e22da6453ebc183db55ce181bd3e6e0662c72f10ae474f0. 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/90c74319-9bc8-4925-8e77-fee5928adeb5.json and https://artists.proofprofile.net/proofs/artist/90c74319-9bc8-4925-8e77-fee5928adeb5.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 0x121be76d6583bb9270eed7a776fbf0e7789bd12d0695b73e0c9438bff11eb9b6. 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/USKFR0400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614102905978a8db8d91284995a4f3e1a84a5c0f385de1fd0aa51d5b6612464e. 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/USKFR0400217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359623e572af0f7c57b251a3663ee03b739c41132a0cf9fd1155709b191a6e47. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USKFR0400308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb72a3d1f37ce7aa89ecf206c3af8ee22b14662600622d7216a180d0ac81bec2. 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/USKFR0400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df9c17d15f527f16575abf28fdf0434aef5bf293e39534ff444cdae9983d914. 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/USKFR0400316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32289bb7a59f73345b4bf039c6403e6ea44b71a9a1c399176bddb5b36707ccc. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USKFR0400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9494c585da713ae5c20c715bb331178ef90c9d1ac441ba666fbe4528d41ea8d9. 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/USKFR0500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb65d7da5053547237b61b03c23080099264001d5e66fe32e89695a5f5b836b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USKFR0500709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9242aae3005dfd43bf3ef68b28b401bd830e872e78f111f72a5dae63a779d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USKFR0500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecc6e776a52817f9c20bea4dc3e8a103e66f4c9b3c7f73f628fa73bebd9d01f. 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/USKFR0500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28feaa53dd71e43bc4378baa87dcb05f0dbf45896d53be462f6cbfe84d5f608. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USKFR0500713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1643e1b128fdfac4d40eb8def90ba0c03c4338bc1136860d299099a2f3517a96. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/USKFR0500715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca5a510960b46d3b58029f8746a4f727b6c38373439bae7a6d2ca50ec1d6e1e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USFW41278705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1170b483d1280a64e04941faac905c26b28338e180177afe7ebc9d67a432c78. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/USFW41278707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eab736a5fd1af508af7e75c03173f03916ddaa63a288eaf241ce76724b53f3. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USFW41278709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238508b4334bd9a54197483c7a5e4dae8f4ed20a7c5a722e1e1232be50d237dd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USFW41594601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c860a61f048c9668e60f671892256aaa8356f22219add3888c44fdc1a2a860f. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USFW41594602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2587cc0d0bf7e62eb15b8cc359b5a9db3dbab2d7cbaff9d391a41e44121ac3f4. 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/USFW41594603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388ab958f11ea64e762696372f091d6d10add8515bc4344239678cf3b034517d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USFW41594604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f30e5ef2ffa46a576c5900b977d954ebf110d7538c9a1d64ea8914397908a2. 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/USFW41594605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97deba8ee6c3605f35d48064c96b2e7025275ce014ae96c3f6b417463369a7e9. 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/USFW41594607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b55b786f8f6dd82d30d33d3ff194716183c5abe86606d7a16551eb6769b088c. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T05:20:29Z), 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/USFW41696001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486e6a032d0018e6f66a526cdb4c2351ec101ae1c10d90c56f8e5278c85059d. 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/USFW41696002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a13b5f8c52b81225577731b88a93914169f78c5d77721a32e121d2658bd5c9. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USFW41696004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1edfa0c93bf77f579edf03c2430cb46a2fd75c9bb9f5f9c8d0b9f491d1d004. 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/USFW41696007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578becfcf8393fbc0fe03f1ac56457be261c7741758173ecbf1081c30704c1ac. 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/USFW41696014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bdc692e714cb862cc1d8af0910eea9a214b9f6eb1c96d08d4b2483e0573e38. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USFW42114105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576676e959cf19482ef336c9af7ef8e3d936c9a3d1a394e933a4dc998469e011. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USFW42114115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a5f9abb45a4f5da9a102502a71bf6ee20fe4afd4c293bf82ac64a248f891e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USFW41391521.
Punk Rock Is Your Friend: Kung Fu Records Sampler, No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd298546aaf65d7b6d459e0539d0547331410c1779160e31e859972a622127dfe. 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/USKFR0700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee37d087046b9c38262497e689279a07720a3e5c25163a08c2bf90195353679. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USKFR0700823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb395ba61c70cc94be3c7481906aebdf340e47c220e02865549c68c2e07eacd0c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USKFR0400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b830f3d9cb53307d366187f88dc82c44925f960137926cd79d4b83030b800. 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/USKFR0400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88650e88bf8b16c811f47828ce64c2f1cc515a8028dee3dd47ffb3efc6b529d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USKFR0400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091c2d731ce03dde033a0a5afa6a129369242018a523291e9f9acf456badaebd. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USKFR0400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177e6ad97cd65d91aae9147705f6820a16797d66063c2a770f3c0f46877d9f8. 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/USKFR0400167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3333654ce4d47993f5fe45d85f811b96feeea04bd05fce59317804f746a04a18. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/USKFR0400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25641ebd345a9eb2f3c41d29a546b0ec94567883d798d0c28357ff00a69943e8. 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/USKFR0400169.
Punk Rock Is Your Friend: Kung Fu Records Sampler, No. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d38f0e869e27c62cf3e6d6f8dc5882d32a35b03b5bd92f2a871683de0d444f. 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/USKFR0700861.