Thomas Grennan (born 8 June 1995) is an English singer and songwriter from Bedford. He entered the music charts in 2016 as guest vocalist on Chase & Status's "All Goes Wrong". His debut album, Lightin
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 0x9d06037faf6b3480cafd7338a58b0af767808775f8202b7fc793e28e49ad6489. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d613fa58-8c08-4346-b49b-2d81068142d8.json and https://artists.proofprofile.net/proofs/artist/d613fa58-8c08-4346-b49b-2d81068142d8.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 0xc557b1c47099ce595a87a39c774fd70b9d306854d726539d8bac2c4931be28d3. 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/GBAHS2200872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecd86641886670d85a0ad4cbb88cbd1e509a2f106511c30402ab714899f0a70. 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/GBARL2300774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa0ade0a9febc35982d4362795db2c116099d95e9073d116d34881fe07e6199. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:05:59Z), 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/GBARL2300515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48929a14d331a9a9b6b190bfc65fe01fa6e78c6a735f1c7d0f1c15810dafa3c6. 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/GBUM71604552.
Not Over Yet (feat. Tom Grennan) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc557b1c47099ce595a87a39c774fd70b9d306854d726539d8bac2c4931be28d3. 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/GBAHS2200872.
Not Over Yet (feat. Tom Grennan) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf495a11e84f9fc26f0239dfb72f1b62468806b8ab73e203d0740fc4d0f8b34. 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/GBAHS2201151.
Not Over Yet Remix (feat. Headie One & Nines)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352eee29690bc5be5e7db4e72463bb32a9cb3ba3dfd9ad6a2657104eb1130f7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAHS2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352eee29690bc5be5e7db4e72463bb32a9cb3ba3dfd9ad6a2657104eb1130f7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAHS2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13afde348734d5b5e0a3add6aa9c03ade3052a1dbe0be0a7b926027a4056848. 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/GBARL2201858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d42ef98ed53989e554d932d03d2c13afca6fd8d49cd183afdb3458efb63aafb. 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/GBARL2201590.
By Your Side (feat. Tom Grennan) - SIDEPIECE Remix
By Your Side (feat. Tom Grennan) [SIDEPIECE Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517f53711d408585cb2a8f4da417e7380ecbe458808ec19609917fcd3f6906fd. 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/GBARL2100723.
Lionheart (feat. Tom Grennan) - FAST BOY Remix
Lionheart (feat. Tom Grennan) [FAST BOY Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adc46d3e023bc803c12660b3f2351b0fa664840cac99c144fb8d306333b82c2. 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/GBAHS2201533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd867baf9146d7203df42d3b6ab09121950ae9bf2c3b469517aa6df87f2ef44. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBAHS2201155.
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 0x02be3317b16166ab5e3b13f57f7b1b6c2ef66c9dd794d8e87a95c57ecf90a7d0. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBAHS2201460.