Pith Number

pith:LDN7Y6NE

pith:2015:LDN7Y6NEV5AO6R4XS3H6BPPFLD

not attested not anchored not stored refs pending

From Pretty Good To Great: Enhancing PGP using Bitcoin and the Blockchain

Duane Wilson, Giuseppe Ateniese

arxiv:1508.04868 v2 · 2015-08-20 · 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{LDN7Y6NEV5AO6R4XS3H6BPPFLD}

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	2026-05-18T01:34:56.753469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58dbfc79a4af40ef479796cfe0bde558c4df7f5a2e5cd723ace2f2d34e525e45

Aliases

arxiv: 1508.04868 · arxiv_version: 1508.04868v2 · doi: 10.48550/arxiv.1508.04868 · pith_short_12: LDN7Y6NEV5AO · pith_short_16: LDN7Y6NEV5AO6R4X · pith_short_8: LDN7Y6NE

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/LDN7Y6NEV5AO6R4XS3H6BPPFLD \
  | 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: 58dbfc79a4af40ef479796cfe0bde558c4df7f5a2e5cd723ace2f2d34e525e45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99e925d6e4bfc7bea11f2ed36c6b69c99c2dc46e0af32a6487bc786ab56e9992",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-08-20T03:45:05Z",
    "title_canon_sha256": "f79c40a8d87a983a6510aa1c67ab792484a042448319061dc0c7b67a0ed9d90c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04868",
    "kind": "arxiv",
    "version": 2
  }
}