Jim Tomlinson (born 9 September 1966) is a British tenor saxophonist, clarinetist, flautist, producer, arranger and composer. He is married to singer Stacey Kent. Early life Tomlinson was born in Su
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 0x6ff6794fef698536f69483611187b242dcc5276b027120b32d55cb277065961b. 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/046fc086-e827-4cae-9fc6-bdd9bdd367cb.json and https://artists.proofprofile.net/proofs/artist/046fc086-e827-4cae-9fc6-bdd9bdd367cb.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 0x1b74c53d14f2a45798375d7d6cc7f69f1974161bed5e1a39639b2c5531229737. 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/GBKRR0500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b141b48631519e3f9bd941d7aaa4302cc39cfe13f4aaf989d3fcdb2ac7bb4e. 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/GBKRR0500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1511ac5eb78ce91e0a599db0d69e2bf0f950fe63953b72c3329e6c4d32cc2084. 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/GBKRR0500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee09972342bf2839ebfaad03d57105bb2f2b356d4802559eff7368fa52fd731. 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/GBKRR0500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278d84e3c8a71ec24aa982e2c416cd03a408c39e1927f9bce1e19e7dd79f3c4e. 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/GBKRR0500005.
What Are You Doing the Rest of Your Life?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed67305cc02d501f4d5bc909c78904c23a0583cf4c4b4adfe0017b51cbf10a81. 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/GBKRR0500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdb8571bac6c812fef31ffa1d53aa7640cfa2db7f2f2cc16a61726d47a6feab. 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/GBKRR0500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd2db72dd586afa2029d101a49035eb092d252451469674ac765c4e61997bce. 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/GBKRR0500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664e7fa771f2970d4f34204ae9eb2fa17f457d5b1d1f85d4ca45a64942ee013e. 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/GBKRR0500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ead34186dd0dc752a3e64918c2fa2f8c52a84e34b8fc6caeb1a4eed24674506. 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/GBKRR0500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1724c0642842ebb31e32dbc7607710ecea4c86165d28cd1b5cd83804711e5060. 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/GBKRR0500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a576006258b9fbcca1b39456a29944044c6650e00d03abf6af4676f8f66a17d. 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/GBKRR0500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57b34418a63825346fcefbcfac3b2a72ced368a4a7f528566f7f56e3ace40d7. 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/GBKRR0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3656efadf27e4a1eb3760632650fa3b0ac4754eee6cf2c9aca3d35bec43d5f. 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/GBCWU0601688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a79b3d6323460d4bf740b7f1c6f752f8c4dbc5522bdbe5e26d6a635f01f72. 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/GBCWU0601689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487dcbc441cb417f633d3113f6d41de9cd46bfab774f45872e2abb321b5280ac. 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/GBCWU0601690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7b511f9f71dabb9ed2a15f649713ad0ea546298a052d1fa782fd20973d3758. 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/GBCWU0601691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdfd27d60087195a9dd13989651eb7d51da29821a5e24a3a5ab9b367786b10a. 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/GBCWU0601692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c579d072b196e7128fd132b03cff713c6f71b2c479f579dcd0ac41579ea9b1f. 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/GBCWU0601693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a451ad090d3fdf01d75d2b310f663bd1856c6874bd87e3349a015fbcf5afa6. 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/GBCWU0601694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d813f271a9e70ca182fc38a58ac1665baf39840dba65644cb0cd55ac9986ba6. 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/GBCWU0601695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb513c9d2aa255d92b7eaeb8c3af2de21af72ca362eeb348cf4569745fb2b40b. 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/GBCWU0601696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bf6184b85f02ef066016df4e941a070e93277b0d2911fa9a10d41916d13568. 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/GBCWU0601697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adea869b02efa66468410596862a9e9a45ac3b6e26833348e5c051bc9466fad. 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/GBCWU0601698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cff2303979df7c86241c8d2d1ea28b63d15d771be4136fce6913bd4723dffb. 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/GBCWU0601058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7deb9b9f084d8e50da992cc116c7866fe19ba5c656962233554326c2f69dca3. 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/GBCWU0601059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fdf37eaa6271e152cd0183a096a2b195dc444f2209c1c5eb2da27558834ea2. 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/GBCWU0601060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250e21e365f5559879b0bba853c44e653b102fc83b8bf2565b1e81ec19c1b380. 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/GBCWU0601064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f8e3ee8ab52973257ac84ec56b7015d908351306127796e131150a0d68166c. 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/GBCWU0601065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd037ebba095d7441c0b9bc4168c189d55e3c31541ae8410237ffd5b90594a260. 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/GBCWU0601066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5105e9b516a3e77d1c927cc1caa5e9dbd608824cf7b12e21280264e75abf9e1d. 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/GBCWU0601067.