Pith Number

pith:LWJ7OB4V

pith:2021:LWJ7OB4VJVM6NQJXG4FK3MTOM2

not attested not anchored not stored refs pending

F-PKI: Enabling Innovation and Trust Flexibility in the HTTPS Public-Key Infrastructure

Adrian Perrig, Cyrill Kr\"ahenb\"uhl, Laurent Chuat, Prateek Mittal

arxiv:2108.08581 v3 · 2021-08-19 · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LWJ7OB4VJVM6NQJXG4FK3MTOM2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:09:14.937188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d93f707954d59e6c137370aadb26e669068f725e85af89a4250a52d676396b3

Aliases

arxiv: 2108.08581 · arxiv_version: 2108.08581v3 · doi: 10.48550/arxiv.2108.08581 · pith_short_12: LWJ7OB4VJVM6 · pith_short_16: LWJ7OB4VJVM6NQJX · pith_short_8: LWJ7OB4V

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LWJ7OB4VJVM6NQJXG4FK3MTOM2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5d93f707954d59e6c137370aadb26e669068f725e85af89a4250a52d676396b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2179aa420433a388f4dafb437f51e21ee2303e24bf6b3aa4073016f3dcf30b48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-08-19T09:36:28Z",
    "title_canon_sha256": "cf6fba881be06bca2fac18aace4692249cbceaf64f34aaadcca9d22f670b5110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08581",
    "kind": "arxiv",
    "version": 3
  }
}