Solus Christus or In Christo solo (Latin in + ablative, sōlō Christō, meaning "in Christ alone") is one of the five solae that summarize the Protestant Reformers' basic belief that salvation is by fai
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 0x521a9d1c58466498d3a5522692da357769160470fea176dd3342b4bfe0d93011. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6dab8eee-910d-454b-838c-97c9191846a9.json and https://artists.proofprofile.net/proofs/artist/6dab8eee-910d-454b-838c-97c9191846a9.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 0x64c28dbc0fec3b62cb1d7615285f2e83ddfbde32699855462733401b14be90ab. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:01Z), 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/UKXN22255077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc821f7522ba368bcc159788c5bb9867a990efaf28a22e22a4a2cfb010864056e. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:33:50Z), 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/UKXN22264503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf3f7674f09543c98e36531bcedab04823fd68d937d36b4a2e8f168b702a1a2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:36:33Z), 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/GX3Q92315194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423c408c5c31360b063f6a636fcd1587ccf89aea3b0c3dd86ee89c5a9e794aa9. 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/GBLFP2347988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f24ce18a5780152c607cedfe411b3b17903603f1cb3dab3336a9f1f2038f41. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:10:18Z), 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/GBLFP2395293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadddc422b832e5f3cf2fcd8278b34f5c860b1d3b6533db1795e420163fd1066e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBLFP2436025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3979e32eeaa4fd00a162066d8c96a866fe6464ee2d0139aec20d670ffdb2874. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:11:22Z), 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/GBLFP2484481.