Pitchshifter (originally Pitch Shifter) are an English industrial rock band from Nottingham, formed in 1989. The band was started by lead guitarist and programmer Johnny A. Carter, and bassist and voc
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 0xa9bd36a417e9749eb1a75d91a7b5692edb1e67586b5be462f6f7d0d9d106b3ab. 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/8b017768-9a7d-409a-9a4b-d9633a250ed2.json and https://artists.proofprofile.net/proofs/artist/8b017768-9a7d-409a-9a4b-d9633a250ed2.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 0x8fce188bb88813bd2653292cf5795dbafe27bdfa155f3cc1b39bde9c8258e70e. 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/GBCQV9100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9956861e92b4ff04dc822aed0d8ffa9ad1df5fa96d7a28ddac51ef0a1b198c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBCQV9100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b131b5a01c20bd44fda3762d192c205f577959dc30993fa9c85546ae8b6fd4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBBPB0401021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7026a0e7e20054b4b51c3033cb77d6bed98f2680e6399c2c70df48c9aa8979f3. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBBPB0401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31344f817c88db6c9ccf16f7fab87b741df4b66b6b7cdcae21f656c37f0a1262. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBBPB0401024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ae54fec4fa4b0049f10ed69e0634f736e7d0c0d054937ae1805a5dcc015d92. 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/GBBPB0700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462d5bf7adc6191fc35de3c1ea871b5ba2db7febe6ff54b514eba9cb1b425cef. 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/GBBPB0700438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf61059c571170c86b55d1b8488b8498dbd2fbfa356f1ff5362389367a868ec. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBBPB0700440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fed2754f892d641bc18f13f5cc554d1de080767774f56c1e717bf0b3288857. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GBBPB0700441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4e9724a5e932e6cad45379d78f201bc1135bd6c2f89caea7fc67372d870ba7. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBBPB0401028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1570a23324a63e63b963417fcc7156a8ec6a5a178dcd4e1fe1194cfc9c9a7c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GBBPB0400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb05187f32db4b643635625cad9ddbd768eb0c8606ce8d070f427fd9768dd01. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBBPB0400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f7c788b97fcbcf42a63baeff88104e194e8a314868df0bccc9c1c34ce2fc20. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBBPB0400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e819dc21631910a3227b391b76910065f91617dac60e38d20ee5ce6fc4ab3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:27Z), 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/USGF19716304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf458a39f7c034a1f6665e56803984ba4dd4c6e9300e2bc4aae5bc51967207b24. 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/USGF19716308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389c03a17ca167edbbb02e79f4cab7e3d83a5876c8e67353a345b4ef1d9b9eea. 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/USGF19716309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8696e7d6e4fbc17383ecb79bf26bcd9141a158b401aa118e730bded419d24546. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USGF19716311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a9a92e2c232d26ce5868f3b8c49bdcb9eeeaa516362a5525338588b19fa542. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:23:45Z), 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/USGF19716312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00481294db9c22cc35a9a9195a93deba72e76c30ae77a604526c3059d4309711. 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/USGF19716313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68832024823e8e6904050a0dcba98a675f8d8bc0236090ba793d6c3d4443285. 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/USMC10000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf340b6ba4cb5b007ef8e55ba2dc6ca1d36d7ce6478f7f36898b5160e9ffe07. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USMC10000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ef6bae41c1a890f77feaa17c8480762184748624d555424e641fa362f8c989. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USMC10000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad43a0064fe1dff57bd5d8f2fb09ebc7556a0d0bbea2750492a522f097b0f2a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USMC10000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c17d573a5a323f3fda475854ad2ecdcc3e7cdb597971b93147bbe173a50f739. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:28:53Z), 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/USMC10000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7600d69197d57c7b308ecc9ab5416efb5ef27b245c461bc22fb5b5fcaee6f52. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USMC10000245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc4c0475e8dfba011aea06f216aaa7fb547f6be3d0136ad7d3bf6a3805ea260. 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/USMC10000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d6f8022b88be19189770eb89ecf7bb4985f3e4ed621ed7ec6c697311882cb. 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/USMC10000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc886ae44f15f7acc87bbf20df08371fef5a722ea90f30cef1ea1c152e684966e. 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/USMC10000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203883feee3c9681b1426be26a4dc85d564ee4bbf65d22b8af32d4e4ee7a7d8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GBAJE0200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90013d7646623fc6757d887fd01b01d2b650f87efead99cba6e33353f8037db. 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/GBAJE0200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e658ba74ab8225cc468106493242067291a41fd00ad9679423d9def1391615. 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/GBAJE0200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092188b0ba3aa569a61d28ef5d60c04441c4691f1fbe525f5e44f905049fe71b. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:04:36Z), 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/GBAJE0200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f3b258e5081cc88440a7699a88b2bdfaef90bc69086dfcc448f716d5ed4b2. 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/GBAJE0200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82693af331e280cc299a43ce785412b0c52d32d66d98deee412b719c3d6d61a8. 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/GBAJE0200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd181b16bfd953daccf12d363c335d49d7394fcc648c214334b0ed0c5fb4fb9. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:49:23Z), 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/GBAJE0200285.
Un-UK (20th Anniversary: Brexit Edition)