D-Side were an Irish boy band established in 2001 by Irish twin doctors Rory and Eoghan Mac Sweeney and signed by Clive Black at Edel Records. The group got a recording contract in Japan with Avex. T
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 0x5d1b259c6ccef815fe4269eb4fa3e565a001212c778edb86c1b3130ee84d11d4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99f353e1-7907-4e87-a5c9-024f4bee8556.json and https://artists.proofprofile.net/proofs/artist/99f353e1-7907-4e87-a5c9-024f4bee8556.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 0xf387f8282b03c6ef4324454e4e9b7ce2323610e5020b12a28e36828613d545de. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBBWY0100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45261050e2e33157277bb574053c74d8b7e60e1f7ff18413b1aab666634d7b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBBWY0100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd25fc3cc5678976d1c791730f5075a98e66d1cbaf0cc8cfbd27a45d2c1a1c6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBCVW0500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5905ac168002966efd9959ed47ff8ee990f29f27ff321eb9e7f793865c02e3ed. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBCVW0500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fedac4d55ce8887df21634630031174b8f8e52433c30109090f19beda50fe6d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBCVW0600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07436dc616753ad3463c5cfaea4c80a5097bc55c223ac97109eeeabce8a595cf. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:33:08Z), 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/USA371207620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5565236c7cacd5c30846c75fe663a20c7bf3f8356f9a45defc67ff142724bd91. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:39:35Z), 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/USA371207623.