Delorentos are a Dublin-based Irish alternative rock band, formed in 2005. They consist of Rónan Yourell (vocals, guitar, piano), Kieran McGuinness (vocals, guitar), Níal Conlan (bass, backing vocals)
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 0xaf75c01f39a766c9f00cf7ec4854e66b056678d1b18bc8783d19151dbcd433fd. 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/3a033734-8e7e-418a-8b23-a3fe091f5614.json and https://artists.proofprofile.net/proofs/artist/3a033734-8e7e-418a-8b23-a3fe091f5614.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 0xee9638b95b2b408b6c44506c93e3091b72f73700e98d75a403f2c0286630f563. 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/IEATG1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7d04a5a6677304eefdb15124459af59f766cf42178bd2dd25079933d541bc1. 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/IEATG1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc87ee9e5d451f52dc2894fca74f71b6425729d5d215b021b1405227ca8ebc13. 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/IEATG1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe760a00d63880d6a1a3ac6f8310ff11af125b416d6a3d831e2376d042986f643. 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/IEATG1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386b81be5ed078f83fe0a4f96cd16a32a6523ba83b2f509afb7d1627092be314. 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/FR6V81619073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a5b6b0f86d0fcca2d0e47784f521c9194bd8329a905d1dd9c0301b44f983c7. 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/FR6V81619074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7935016ab54de5d34ea669068ecbadf65e40ad73a0bcd7b147f72cab700a9d. 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/FR6V81619152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d306a31ea5b638e39de812b4d6eab660045270d633517d62bb56f4e8a5d5d9f. 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/FR6V81619153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf51ada3629640792e7323a1382f0259d311950ce15b869df05c466ee4228672. 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/FR6V81619158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc4ce4942aa67c64649b21fbb2c50cf66d66de64aa0f46dc688a1ca0f04a60f. 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/IEATG1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c1d22d648d7ff44c1d3f98f5583c1327d47586894b7159988c1dbc69d5f096. 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/IEATG1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ea74ecfa36cf84119f60067c8d23f8ebf27cdb3d4574a0e0f46816e8f25ed5. 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/IEATG1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ad3ec11f7d0712958a3d610c22ad2257cecb5317022786884fc47aa363ead1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IEATG1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0031097fdfc5cab2fe8427ca06c45df33e8a5d274584246d7111e374b92366e9. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/IEATG1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1509026f30139e93ce33acc22fd71d95314aef6e1fc7f7b702823bac8ef074. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IEATG0900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e8efb78bc45fab80b0b8dc1a7507d44d88b33118121b0af3ed890b311f8d33. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/IEJUL1400008.
Sound Training Records: Behind Closed Doors