Bebo ( ) was an American social networking website that originally operated from 2005 until its bankruptcy in 2013. The site relaunched several times after its bankruptcy with a number of short-lived
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 0x9afe902fb7b3be0cfdf5594af19ddb10b036c711a55ccc83a005e8bbcb696bf7. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ceb34d4-d914-4eb7-9652-d8c293aa4f93.json and https://artists.proofprofile.net/proofs/artist/9ceb34d4-d914-4eb7-9652-d8c293aa4f93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).