Newhaven is a port town in the Lewes district of East Sussex, England, lying at the mouth of the River Ouse. The town developed during the Middle Ages as the nearby port of Seaford began drying up, f
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 0x321eeff8bd3db120e66429dd2fb9053ee94fd4d1399028eb3c0dfe2b1b22ac11. 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/35b8c5d3-c019-4d9a-b6f7-df065c1fa777.json and https://artists.proofprofile.net/proofs/artist/35b8c5d3-c019-4d9a-b6f7-df065c1fa777.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 0x310f262f9ec4b00488c6791a4491d20efc58669a3cf957134fa912c44d13e042. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACH1523379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799148198a6cf4b7d9b6973abfa0569b1bd33e58a9d80d243e5f1a182d087e7d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:56:09Z), 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/TCACH1523380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4c817a3c68b8b9071324c3d3ce57675882e55651fbb2b98e242380b14fb098. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCACH1523382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feffcaccae96391e883ee843dfc2ec5f10f75b61e211e1d8eb4bacaf3ae0c2c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACH1523383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2051b3090b74cfeb5ada88fbc722c0746d4ec61a610b1b74a40d4aedbbdad0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCACH1508269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe689bbcd30ee10945545f7c4b7781946935886d6f7a5c955b12168f3cbeed46f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCADG1727577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c6762c23f62799ec1d8fc3c546a1e6832996c2710bda25060af811f61caf80. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCADW1871889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf119a04680e67e33af3257e3fc100f1bb93853696d5968ec70110b0103673468. 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/TCAEL1970631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f3b16b7b7f815cb8f415051a43d1479475494479a35403ce04eba384d49cda. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAEL1970636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebc3c4188ecdacadee80c003fe4aaa608407999c9f421d945c54e4cdb7616b9. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/TCAEL1970648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72be15644a0857bc5fbff568334d474f774034fcb4169307d8acfa14a4659a8d. 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/TCAEL1970658.
Yume O Miru (Theme from "Samurai Unicorn")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44effa588b8cf1d16963150e89d89763e5d775286939017b56a33267b0cae792. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFR2423796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9e6a9d0f6a38395cffc96967c133feba04da2a694ee617bf8b1cbe4ee5c92d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7N2461464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79111560c2208169ff95802e3e5b69f75c3500bf80b34c3d3d009346f97b2c0b. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZZ7N2461466.