Nizlopi are a British folk and alternative music duo formed in Leamington Spa, England, by Luke Concannon on vocals, guitar, and bodhrán, and John Parker on double bass, human beatbox, and backing vo
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 0xcdc1e0c306fb53a424e3f7df97c49b969562c138165539e1361cf16eb4c00e85. 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/e884c4e1-a5f4-4e03-8930-f47aa8930e64.json and https://artists.proofprofile.net/proofs/artist/e884c4e1-a5f4-4e03-8930-f47aa8930e64.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 0xdef8ac9b1b2bef726fa872c6d573002305e8a1cb27298924b1b4c7819d53ddca. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBHEJ0500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292467a22bae4244b005bb4524d337c3124c66bff82d536cc0cd0335b13186f6. 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/GBHEJ0500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bb52c30c9e14d58f2e6298fa4c35e55680b61f5123fcd78cff7ced3edea642. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:40:06Z), 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/GBHEJ0500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d57d45d4f616a942f58d1e685d7661e3391a05906948e4e476d2cd6efefb7a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:14:53Z), 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/GBHEJ0500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ee0757c484364f6a0bfdee7a9e2f225f735de2a16bf8192507839eb4fa3f32. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:55:09Z), 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/GBHEJ0500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4e9d08f0f4974978f3a2cee8243b4970626f95200cab5c18e43173b542e196. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/GBHEJ0500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75dea4a19d774b347b168db6b4f61856473f90ad8fe65acb12c2ba9dea2a613. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GBHEJ0500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a82e7f712c100363cf046d5eb7a4f7f17ce0fa785f5b9ba428ea12eb81c312. 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/GBHEJ0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784c73a6e83082c1dcb5d3b7167f04ab86020120adb1578aae42f0ba04a40411. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBHEJ0500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947363363db71d8d5ba5a6747d7438b94a2239452c1d5eff6fde44bffc3d418c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBHEJ0500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7235214f9a88e9be855a8014f18a2182871fc04ac36f0bc9428eb264e8a3a97. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GBHEJ0500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef8ac9b1b2bef726fa872c6d573002305e8a1cb27298924b1b4c7819d53ddca. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBHEJ0500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886ae49b35fc8096ba0d1879ae09620570bfd53899953192c95ae637fdfd4667. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBHEJ0600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef8ac9b1b2bef726fa872c6d573002305e8a1cb27298924b1b4c7819d53ddca. 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/GBHEJ0500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056df87f2ff1ecfe967bf42c16d95398a711a4a681d71694d8f244731353c7eb. 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/GBHEJ0700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209257e4fee1c05587b454c78fed5b567f33d05f00ceb3b7fde24b72d281c15f. 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/GBHEJ0700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb997defc3ccc19a095e168c216a830c8d52227974f56259290f713eda7fe00. 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/GBHEJ0700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3ea0bc14218831ca46d1122fd05d8c054cc1857a6d836851ddd79b058ee447. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:03:24Z), 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/GBHEJ0700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503acc44a5e7bef8541a856f0e9592d32df1e72b210184f001753e0dfbfea844. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBHEJ0700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2bcdbddfd0654a2a1d8c886d1fec3ab6de100bcc51ea97b453e7c40459127b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBHEJ1400156.