Worthing ( ) is a seaside town and borough in West Sussex, England, at the foot of the South Downs, west of Brighton, and east of Chichester. With a population of 113,094 and an area of , the boroug
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 0xdb11cf55295cb433bd0f0fcdafb24bfdaba7729b61f29ecd45f54294431baafb. 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/3c45793f-f145-44b6-b082-4812fa1bf24e.json and https://artists.proofprofile.net/proofs/artist/3c45793f-f145-44b6-b082-4812fa1bf24e.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 0xb36829ae4edfdf97de335a1374fb76386d8dbd9720383246ecd87f7f4c95ea9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZN882242373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a4849f9dd44a8a573d55f4436ac53c938dfb01aed3ba1daf9f52960c591f15. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZN882220152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c68d0623c0d79c2dbec2aa0da59c70f6265943db52eae1cd1a11985b381e9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/INSK92400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8839a8afcf5863b65ea73e9f129eadee31ef09cc9a6a1521df8b14ab06913361. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/INSK92400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadb3e2f0c2ea0cb1975652b50baa42a959ae9fcaffbf841f6b002dda9f745a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INSK92401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8839a8afcf5863b65ea73e9f129eadee31ef09cc9a6a1521df8b14ab06913361. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/INSK92400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4324e5e3ed433d2bb160f3cf9fd0f83dab1b9d52ed9899562215058dbcae58. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INE462200434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadb3e2f0c2ea0cb1975652b50baa42a959ae9fcaffbf841f6b002dda9f745a3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INSK92401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a4849f9dd44a8a573d55f4436ac53c938dfb01aed3ba1daf9f52960c591f15. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZN882220152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36829ae4edfdf97de335a1374fb76386d8dbd9720383246ecd87f7f4c95ea9f. 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/QZN882242373.