James Heather (born 16 March 1980) is a British pianist and composer based in London. He releases music on Ninja Tune founders Coldcut’s other record label Ahead Of Our Time. Heather released his debu
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 0x1b2a49f8f03d6462170c8bcc91b649dcc2344df68483863a526d9bd39f279aa3. 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/7b6fd680-ff8a-4481-8677-136270d057ea.json and https://artists.proofprofile.net/proofs/artist/7b6fd680-ff8a-4481-8677-136270d057ea.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 0x1163f4489caff943ee076e8e1c7211739def88de681ec6ddd7f82be978ed8e21. 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/GBCFB1700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ebe1df3e10221e4e68381fbe00e2f5990c3268825546b782c21390cdd245b. 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/GBCFB1700161.
And She Came Home (Mary Lattimore Rework)
And She Came Home - Mary Lattimore Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9670a6f6280646d1e2d1b84e7f313f2235d339056883a5f5566b2fcd59ea1f1d. 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/GBCFB1800270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8108a1270ee816b74de598365bae7eb4a0ff0d2389a9e3c7e19e6fcc34442e4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:15:53Z), 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/GBCFB1800239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eaab0467fdf96f5213772c7d64990ecdc198bfd14438c1246882ae23e0544d. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/GBCFB1700273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1451674f2470e47e14214e815119b9eb2bbc878171d202fa2d6a6b9c4bf54e6. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBCFB1800229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e71853e41a623ab862a2a6638cf6315eb7bafdbc306f21eb65ac8a103847faf. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GBCFB1800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ee8fce06874321c183c96e1a9f4cf1196f32b6dd9f09250e553ea37bca3f21. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:04:14Z), 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/DELV42300066.
Hidden Angel (Hackney Road Studio Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56d8668d626bb47f35fdf6c1ea4b894a67e13886e33e3e1da7b6e860d8f1903. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBCFB2300134.
Ultraviolet (Alexandra Hamilton-Ayres Rework) / Meant To Be (Voces8 Rework)
Ultraviolet - Alexandra Hamilton-Ayres Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf036aa5f5ea3dc1245702be097b8437e5841b3056ba93f28a87468f0e52d6. 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/GBCFB2300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d382c69ca5a7ad8ece5b00e2f3c03c15065fe9b78c7685dee3eed55d293f5fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCFB2300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef30905158e5ac5cf388657a5aed3bab91d858dd977dc4957221a64b1465fb38. 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/GBCFB2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ebe1df3e10221e4e68381fbe00e2f5990c3268825546b782c21390cdd245b. 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/GBCFB1700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c21fa10c3214645b394c088adbc694079ea8c2608946b0fd2266447cec4020e. 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/GBCFB2300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56d8668d626bb47f35fdf6c1ea4b894a67e13886e33e3e1da7b6e860d8f1903. 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/GBCFB2300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf036aa5f5ea3dc1245702be097b8437e5841b3056ba93f28a87468f0e52d6. 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/GBCFB2300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8f8ad3c50f788d06717a7c9d0b55e97881e72522ee71db5486ba8380e39bab. 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/GBCFB2300269.
Invisible Forces - Ishmael Ensemble Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305e31a979bd3023da45f7a9d102d0eaba86f0cce766081d5b7e5b3f68710efe. 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/GBCFB2300138.
Hidden Angel - Hackney Road Studio Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c159758ad0bf9fccf1b9e2976d41a242e5e610374b9691350d0fe678010f1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:36:36Z), 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/GBCFB2300318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880beed5c782168dff38153c99bacd932144bcf540f3181baab788f7773fdc49. 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/GBCFB2100365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d382c69ca5a7ad8ece5b00e2f3c03c15065fe9b78c7685dee3eed55d293f5fd. 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/GBCFB2300521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8f5483a422c0d51923863123a55c9ffae19dce875bfe8a006ccb852738cac1. 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/GBCFB2300341.