David Kennedy (born 1988), professionally known as Pearson Sound, is an electronic dance music producer, mix engineer and DJ based in London. His style is a combination of house, dubstep, UK funky, UK
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 0xc6d27e306a9eb5f1f06e819d211979fc0bc871f84cfc9214a22b5ac4d958d2a8. 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/fd6c1d61-fe05-4fb3-9128-8b4e18ccd2a3.json and https://artists.proofprofile.net/proofs/artist/fd6c1d61-fe05-4fb3-9128-8b4e18ccd2a3.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 0xfda9be7a2fef1c1af67f72a0aca6e541583b44ced79cd247a35aeeaea7408545. 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/GBUMC2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aaad661663e0d550dffa856e0faa901a459f9299ec991ab05265016525d2af. 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/GBUMC2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d3c2158fef0dd82e2d730a983860621abb2e3753a138862cdd8d2b0cb3590b. 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/GBUMC2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d91d0d3f88d9e7116bb090b8bb25287c01fe0b37e2c9d94ba564a1a30b755. 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/GBUMC2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda1cb98e659910400cc2da1f3d81f07163d13e7697cd85dbfc2f94d33a3694b. 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/GBUMC2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec82db13c17fb3d0ae33cb2836031415cd774e4e375517c3b96646abd945c17. 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/GBUMC2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38613c753ab05395aca35028b1723ff7a632b2c418b816ab300711af1125a533. 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/GBBF21700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbf6e5f1259303e0dfae6bdd643ff14caa266f63cdf955c0e2dcfe00ab9d659. 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/GBBF21700003.
Mannequin in Heat (Pearson Sound's Melted Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d9550fbbfc0a7467c1498eada41add7ea805a24722de70fb45d73f7629c028. 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/GBBF21500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b1ce1627487c3f782846ff496fbb9e1879aa0e79c63df6813b27931f7e4135. 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/GBBF21500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc12443c4fa9fa2aaf5250a10c9d37320d369efe54b6c5525923c0dc709833f0. 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/GBBF21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1554e9dff04c88df7fb9743475f9c75b2e36e21ab87f0865ee22ae43d4184328. 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/GBBF21400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcca64af34f073a675a700663f0ace7bf97647b44b8e578f3a613054140c9c3. 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/GBBF21200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7fda94d07a2e6f967f51ed83da14869626d33f8a27716f9f3198a7df778f1. 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/GBUMC1000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe63c6f5545d001951bb85ff90c98f57aea18b9109261c699105f0d1939e3237. 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/GBUMC0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd3fb02ef0e89367ad6ce26f5c300aa10609ec0977406a9e1622c9878beffa6. 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/GBUMC0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a65ac1eebe4efb32881b13ee5f8866304847d6f85ae4979572d51cfb233db4. 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/DEG931992251.