LSG can refer to: Organizations LSG Group, an aviation services company League of Saint George, a far right group , LGBTQ Esperantist organization Louisiana State Guard, the state defense force o
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 0x3ecf14fd9fb4ae3075c3a938482dc2a63de0883cb286d5319d4b6a8a3d3a50d4. 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/348316f0-1e79-4f49-8b9e-641861070764.json and https://artists.proofprofile.net/proofs/artist/348316f0-1e79-4f49-8b9e-641861070764.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 0xefc2236acceb4c3f3bacdb11b952e12904b920f77addc151b2cf60a3a56e5768. 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/USEW19794558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23514a93b74a256ed20211c52eb9c1a48cf4bff440c953941aff5f203c650b0. 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/USEW19794559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a71eb2182fd7d0e59062f2d7c08b01cff7b0b70e68c786ebca6c2ce6f2496f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:56:23Z), 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/USEE10340421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66d5cd27d5e25e70fb088bb369ea45492ae8a79e32ba0b98c0447497815bf94. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USEE10340539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c805112ea747e6ec57360765b51b2ee7f69fd0a3c97e0ea981d0845b0143be6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USEE10340540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cc3133b7a8af69378bc615482ba2f07207567b94d302922fabdcd7a6b023ea. 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/USEE10340541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab8cf34b8d1b3edccb2d56e44926ed1978fc636835839f9a7d7fd4246f6b6c7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USEE10340542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a608af1275f37be8a5bd1daeba74996e3d0f5fd88704ae0a0227c203ef11d3a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USEE10340544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093fe0d19741e63b664ce37e7eda6006e68b25eaadd963c7b5dd3eacf0b34faa. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USEE10340545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffc3be0bd4b6098ae18e3c568f06bcabccb06c6da11b01e1b11e40d39a8f98a. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZTAX2477623.