{"copyright_id":"0xc7ac9fd2cb9e555afdd25ae83c4f290bd4981043ece2051a8f126742ba59cce0","name":"Sunset Bossa Collective","registered_at":"2026-06-14T11:06:28Z","symbol":"NIM0433457","token_address":"0xf2c98ac4d644ac2ce8a50f3ccebdb1a6ccbe79fc","type":"artist","uuid":"3e81a9fe-ef8c-467d-858d-06207a5dee3a"}
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 0xc7ac9fd2cb9e555afdd25ae83c4f290bd4981043ece2051a8f126742ba59cce0. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e81a9fe-ef8c-467d-858d-06207a5dee3a.json and https://artists.proofprofile.net/proofs/artist/3e81a9fe-ef8c-467d-858d-06207a5dee3a.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 0x32cf28fe7f76f495033c47691dfe1d60fb69f6b121681e616ca094394ab4dbed. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZN82504909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5b603de935f2f955e908f98d32388efd50f389bc3126a36d8c16177abe6ab2. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEZN82504900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877197b86228aacf0488e1460cfa4642e3e731a078bf005ce2451c49f77706f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82504912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252adf092adc8b027fd08b2db8ff9b729805935d2f8d5dc449f3ad7ec49af1d0. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:19:43Z), 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/DEZN82504908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f21cb0f126793d3d63b8e23453b8e1b6809a310fc1663e2bce7bb67b991549. 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/DEZN82504893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27735e312e8ef406f0004df7bee13f4a0afb55af851a99d3ea4f6e5004433f05. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:00:13Z), 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/DEZN82504906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20baa5ac343cd5eac55718b635bbf95fdf78efe3cafbc5574af5e0170319bca. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:24:53Z), 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/DEZN82504903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926951274a846169bc6530461191b909938ba8d1cb38492113b163697a5bee26. 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/DEZN82504905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbef9147623e30f06ffcf6c1a6c2f0de47c9463d00950ecab7fc81e9e3f672dd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEZN82504904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774ab5160aa2cfd7391dad64bfcb45653cd8f4441a252219e1972226bc677160. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEZN82504894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa24444e62509fdc2b2b0de60417afeb778c8fb5427838f79f9217833ef1785b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:32:58Z), 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/DEZN82504898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4df13919321520b16b7b7452c28ed640858e1973d5f75c7c942d1bff3ec8360. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZN82504891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c152518428a39be0befdac3bc65d86533af904e2263cc8c0a859740409ec56. 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/DEZN82504947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d9ed6522cecf30664626bcb4fb0b51ffb1f3d16c4576a0d875d02fa42f0082. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZN82504945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cf27853ed27c72bd30749cbb24745edc0aab6d4fe435d80f67c82e052175db. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEZN82504892.