Lincoln Barrett (born 18 September 1979), better known by the stage name High Contrast, is a Welsh electronic music producer, DJ and record producer. He produces drum and bass music, and his 2009 albu
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 0xd78d1c1a7edf003d9d094d60e03a7a73c1fb4060b1f9d3619b07a362222b1b53. 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/5b04592a-c90a-4655-9414-3f5dae8285d2.json and https://artists.proofprofile.net/proofs/artist/5b04592a-c90a-4655-9414-3f5dae8285d2.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 0x5a70ba74c52f7a521faa4f9569241a03bc349c22e01e33d11a3d56b4f64d8d49. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72108520.
Freedom (Sub Focus x Wilkinson x High Contrast Remix)
Freedom - Sub Focus x Wilkinson x High Contrast Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf232c6bc3007807600b45402a685f128f154fa822f61dd64848024bd7bd17a60. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72006895.
True Colours (20th Anniversary Edition + Remixes)
Return Of Forever - Camo & Krooked & Mefjus Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c57bfb77068dde954a41873e49bb5345e3bc8342b421725d6eaf0915bfc32b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX5HV2200003.
Music Is Everything - Pola & Bryson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54718812e46f10e118cd8faaff9bda621bfa9680593dbb804700748bc41f73fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GX5HV2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5b9676b2638ef2cf8454fdacc4485c850bc40110b84fc6795b729778ccc4b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSXS2000148.
Time Is Hardcore (feat. Kae Tempest & Anita Blay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e3dd352dc9ad570f84dd6590b61c775509e6f59c9c4ffbbb428db416bb3b52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSXS2000149.
Met Her At A Dance In Leicester (feat. UK Apache)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d7a190d845e265cc8e773ad6dbcda6b4343b2bbd38b77145b6a7cb564bde41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSXS2000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae99b63e9d040b1d17e9c1c2dc3bd9a4484d7c1de7337209a90fc142003c6c12. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSXS2000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57c6c2c5cede6cf1e1f90a7ddc9c521e716c07dcd013c9a1212697a69256492. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSXS1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bca1ea8b0ae04e2d531366809c8b103b33db8fb32eb2440d4263617c559a0b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSXS1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453599afa133cab38757719e5fbcc0b50d1e9d469e1786d68e1cd70e6d7fe6c3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSXS1700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb50727b80be70a8fda41481e5953f5c0b40963916402abb9bb26feb6a7f541. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSXS1600158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e83137946f45c064c61c8f98b97e43237d784fd3d48b6e2a862ae51bb24d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSXS1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab373b60e87c66c87d1e3dc602ebd317bfabdc03a7ba1ae47390a6bece2c888. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSXS1700103.
The Agony & The Ecstasy (feat. Selah Corbin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e4aa6854c35ae4a9372e7a46b582befe52cc248cfb1f0c13080d4e949bd1b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCJY1200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d7fbccf7a6952476a9089b3f82a705bfa49a84cccd97a1194656ac79e31b24. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBCJY1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d427065a286ae864a4dd746abcedb43cd541ec518c78c0cc96331766e3a0bf5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY1200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb3cfecde78609df2963ead32539011e671826319075de31ec734c85076c424. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY0611514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20417363e80fb78e2703829332dfef8a45dd045a7e6f6f73bf95efdef8c30894. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY0712502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef6bdb383806dc85989e85cd42e25512f0b25961121eaaf5970d67637a6bf96. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCJY0712610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564e1bb9f7e7371616dbd3d80e52daaa8a71409e823844dd466975399669085a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY0712612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f6aceeb00c7b5bce3ddebaa9d3a48ea3967af081000a6425f3979259b3ed32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY0477004.
What Do You Believe In? (High Contrast Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256d1d88a6ca4575de94c4e09918a586d220a37737066fb300e584ae80404391. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GX5HV2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e7effe556d113c59109c99cd612d8b26357cc7e0acb1be77e9e3fac5dd25af. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX5HV2400002.
Definition Of Happy (feat. I Am Roze) [High Contrast Remix]
You Don't Understand (feat. Jamie McCool)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87df0d704c89e7a23e8ff9de2bf7b3c29aa1f330e21b1b0e8f755b9c31c5d87. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX5HV2300002.
You Don't Understand (feat. Jamie McCool) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733bcd3d49271a397a26fef21c96794e90330cd6c569e49a81725cd2ec2b1674. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX5HV2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ada043efb1275a61772614220846468ea58e90658dcf8aa44e67b322d0be5f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYE2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc191ea91e3658bcfc1651424940af6abf8888b716e75921b6846707cc3f6c7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5HV2300001.
Return Of Forever (Camo & Krooked & Mefjus Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c57bfb77068dde954a41873e49bb5345e3bc8342b421725d6eaf0915bfc32b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX5HV2200003.
Music Is Everything (Pola & Bryson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54718812e46f10e118cd8faaff9bda621bfa9680593dbb804700748bc41f73fa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX5HV2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03499c48cd5195a9955beb0e3a8c65b85e02215fe3a122ee334b3a08d62af1f6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX5HV2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b03d563968e8546b4bf9ff9bc1bccf2ff916cd048ea8e89e776839228c3b9e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB8KE2161866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26978254bd0118be5bda8f942e29fa19a207a992d442bc3e8c957d73a77a537c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72106033.
Lord It's A Feeling (High Contrast Remix)
Lord It's A Feeling - High Contrast Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99047e0361027dc6e178ad044ba6ecb14801e9959b1f65b3c8677b76d0511a8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCEN2100056.
Met Her At A Dance In Leicester (Sticky Remix)
Met Her At A Dance In Leicester (DJ Marky Remix)
Rhythm Is Changing (feat. LOWES) [Mella Dee All Boots In At Once Mix]
Rhythm Is Changing (feat. LOWES) [Tom Everett Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5b9676b2638ef2cf8454fdacc4485c850bc40110b84fc6795b729778ccc4b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSXS2000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fe1194cee9bd09bae2e7594c0ab8fe94c4632f9b16ab8b0cc1df41fd08e605. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GX5HV2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f5c2ac4cb4a8112c6a86f3c7428a81e38c7ed57ab654fd244234fff1c4cb0a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCJY0712501.