Pith Number

pith:5XDMJANC

pith:2023:5XDMJANCLNCYXUAGOFEONXW42W

not attested not anchored not stored refs pending

If it's Provably Secure, It Probably Isn't: Why Learning from Proof Failure is Hard

Nicholas Boucher, Ross Anderson

arxiv:2305.04755 v1 · 2023-05-08 · 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{5XDMJANCLNCYXUAGOFEONXW42W}

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	2026-07-05T06:07:53.544554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edc6c481a25b458bd0067148e6dedcd5b84ea2d4d3267d07967285755021b4a9

Aliases

arxiv: 2305.04755 · arxiv_version: 2305.04755v1 · doi: 10.48550/arxiv.2305.04755 · pith_short_12: 5XDMJANCLNCY · pith_short_16: 5XDMJANCLNCYXUAG · pith_short_8: 5XDMJANC

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/5XDMJANCLNCYXUAGOFEONXW42W \
  | 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: edc6c481a25b458bd0067148e6dedcd5b84ea2d4d3267d07967285755021b4a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7c3f027b31f65635db963233625b5b580070559659e4d475449040fcccb3d23",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2023-05-08T15:02:15Z",
    "title_canon_sha256": "4c6243fcff36691c0ad7721d22eb6d558a8952b58ed1574d0a258a9459938f60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.04755",
    "kind": "arxiv",
    "version": 1
  }
}