Pith Number

pith:P7H6UFB7

pith:2015:P7H6UFB7CFZ3EJLGDR2T4F3UPG

not attested not anchored not stored refs pending

Towards More Security in Data Exchange: Defining Unparsers with Context-Sensitive Encoders for Context-Free Grammars

Bernhard Rumpe, Lars Hermerschmidt, Stephan Kugelmann

arxiv:1510.08979 v1 · 2015-10-30 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7H6UFB7CFZ3EJLGDR2T4F3UPG}

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	2026-05-18T00:58:34.669989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fcfea143f1173b225661c753e1774799051fbc8e8ef3f8dd475490dcba0a438

Aliases

arxiv: 1510.08979 · arxiv_version: 1510.08979v1 · doi: 10.48550/arxiv.1510.08979 · pith_short_12: P7H6UFB7CFZ3 · pith_short_16: P7H6UFB7CFZ3EJLG · pith_short_8: P7H6UFB7

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/P7H6UFB7CFZ3EJLGDR2T4F3UPG \
  | 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: 7fcfea143f1173b225661c753e1774799051fbc8e8ef3f8dd475490dcba0a438

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20d7d88f78fc0aa9342402274fb906a8f027a4d058d6a38aa733bfffa0ce7402",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2015-10-30T06:30:34Z",
    "title_canon_sha256": "eccb3fc8f56e170a3de2b113a3a2546511452ce714bd58214d2fe7e298d26b7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08979",
    "kind": "arxiv",
    "version": 1
  }
}