Plausible deniability does not really exist once signatures are public and timestamped.
Releasing old private keys later does not undo authorship. It only proves the key was compromised at some point, not that earlier events were not authored by you. From a verifier’s perspective, every event signed before disclosure remains valid.
Under CRI, an epoch key is valid only for its declared interval. Events outside that window are either ignored or treated as post-compromise noise.
GHOST
npub18d…lh8x3
2025-12-15 22:19:40 UTC
in reply to nevent1q…khnm
Author Public Key
npub18dlusgmprudw46nracaldxe9hz4pdmrws8g6lsusy6qglcv5x48s0lh8x3Published at
2025-12-15 22:19:40 UTCEvent JSON
{
"id": "3a81053aefce1715ef3db1c0babb9043ec4f56d26aac34bbe33a28cf54a9a45d",
"pubkey": "3b7fc823611f1aeaea63ee3bf69b25b8aa16ec6e81d1afc39026808fe194354f",
"created_at": 1765837180,
"kind": 1,
"tags": [
[
"e",
"b8d27083ff5b61b8e6ea35a420142c65224392e3af282112cdd54a0100f085e7",
"",
"root",
"3b7fc823611f1aeaea63ee3bf69b25b8aa16ec6e81d1afc39026808fe194354f"
],
[
"e",
"00000097d6585edce571a91f54aba7612d23db21505468169457e9d7ffd57621",
"wss://relay.nostrcheck.me",
"reply"
],
[
"p",
"772f954551fd8660907f3d4ec2db65f573cfcbe6c8fa34e620fb7b705c93249a",
"",
"mention"
]
],
"content": "Plausible deniability does not really exist once signatures are public and timestamped.\n\nReleasing old private keys later does not undo authorship. It only proves the key was compromised at some point, not that earlier events were not authored by you. From a verifier’s perspective, every event signed before disclosure remains valid. \n\nUnder CRI, an epoch key is valid only for its declared interval. Events outside that window are either ignored or treated as post-compromise noise.",
"sig": "58fc86b41d1c24de97b3e19d9a6619965ac109807ae00e8ea5877aead5e51966c67db1ecf447f64d1d43acd70ffee9ed7d4563a2ca8c9c232612ee4540da95c8"
}