Black Spiders are an English rock band based in Sheffield, England. Their third studio album entered the UK Independent Albums Chart in early 2021, reaching no. 7. History The band formed in early 20
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 0x0e4f3a1ae8a6b2adaea7bcb5e4beda4d4e5151f4677c15f7bcf661115e664454. 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/ec56255d-1098-45a6-b9de-49ad7377cca0.json and https://artists.proofprofile.net/proofs/artist/ec56255d-1098-45a6-b9de-49ad7377cca0.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 0x4cde45161c6f59fb1e3aede5d66ec806ad115529edab4311f38fb2216d684fc8. 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/GBHLW1110034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658ffdd7030570c1d777ebc83eed1d3ff761b4659ea396bffc55c4e2fefa08a4. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBHLW1110036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5c277af01ab0f3635be83b328d7d190b946a433896a855cb837459395ec8cc. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GB3FC1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1733623f3a074ba165706bc9542da44f2e56ae26a95c03829d14353affc4b0a8. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GB3FC1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c448593e4364b0f6f4255c7a08bc117b963c3d9c26fb1a527ed4de5fccdd797. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GB3FC2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873a54b97ebe6bc481e8088786a047943457674250ce8637d96d19ed57e58777. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB3FC2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd3fbe90d053f959e4e5f143aa7211d8dd1948f41b6922e33337fc30df46393. 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/GBUM72204504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b6e4e4724afaeb80e4c4753fa1760f6dd9bd68dbf0360574d4779813a5c1ba. 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/GBUM72204499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad3e71422d5ad2a327fda66b63e1864a53da74d90f7bbeedeaea91eb83e3e77. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GB3FC2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f02dc6eb6dee98b3c648ba15b8498c4ffbf2dec342fb478c958281bd1df4b46. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GB3FC2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad74e714842277e0146daa52cce914cf990e2ad6d3510b09e8bb149ed735ec5. 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/GB3FC2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6ec02412c52c313221eaf90571847c7c469b99673aeddd67636240245f3459. 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/GB3FC2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe6a9fa5e9f3ad02ce6c085a29d456ca1b0004ea346eb021ce89f1dfe3b4d42. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GB3FC2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804ba6d327f5af194146cf4b544dec4d5b4c744d656d77798d1880a243f91026. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GB3FC2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0237d9a26fc042aa594a1925c4e93a8c297afcd910a28c72779b12747f5a18. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GB3FC2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039064aa3717a930a199892f6f14fe6a056c66ec7bb9f213e5de14ed49411623. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/GB3FC2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6b6eeaf5c7ecbad6e86b7c5d6038da2acb85734d96de8817b95f3ac2e6436d. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/GB3FC2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ab9f55112722e597df98c2d81144acd695c241408e76c87c33808ce2857645. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GB3FC2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ddec673c9cbd3cf2279cfbdfe73a2957a8ec16eced6c40754492758fee5de9. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GB3FC2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc10e7a1a7e0048d85dae119d2760bcd038ce50281f3d880e91051b4bf64999d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GB3FC2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0237d9a26fc042aa594a1925c4e93a8c297afcd910a28c72779b12747f5a18. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GB3FC2400010.