thumb|Lavelle with band Rachael Lavelle (born 1993) is an Irish singer and composer from Dublin. Early life Rachael Lavelle grew up in Dublin. Her grandfather was the composer and songwriter Michael
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 0x4287b625c42d8e0207c88dea848526868c6c30aca207c64a29355ecaf6d8f65b. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d56f808-1e73-4839-8bf8-4d033b3c851a.json and https://artists.proofprofile.net/proofs/artist/1d56f808-1e73-4839-8bf8-4d033b3c851a.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 0x2b618a6f2cce48868698ef720ce88d3d34eddb703e6301a5c832f2c21dc5e5c1. 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/NLRD52336887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d1f58858a977c7bfc989dc09d99b18f9cf25df205fb6c8e691e163c1da28a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLRD52336888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a19e976284b1f0eac4b48d5944d214f246f2747e0dd60a746659b41a263b91. 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/NLRD52336889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eabf768833e0d19b536237aafcc34c07d53af94c6ba537ba87bd12454e4c38e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:12:02Z), 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/GBKPL1966001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a371759a62257d6f6e4cef998e6cfd95bafa8b0c322c7e929fe589535e7c30. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/NLRD52336890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf965546acee0128107d586be909bf0d90f40cff5c59d46c0ac5432742cb29ec. 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/NLRD52336891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4458d0008c3c628b6eea1b1d2f39e142b768212d87e2992fad94211e97edb7. 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/NLRD52336892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2875a40cde58e14c38f747d202f17d4b35100e9c818203aefc3f8cb1850d89f9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:37Z), 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/NLRD52336878.