Pith Number

pith:R4354HUO

pith:2013:R4354HUOY52J2XLXEFVK7YHVPR

not attested not anchored not stored refs pending

Succinct representation of labeled trees

Dekel Tsur

arxiv:1312.6039 v1 · 2013-12-20 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4354HUOY52J2XLXEFVK7YHVPR}

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	2026-05-18T03:04:07.295059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f37de1e8ec7749d5d77216aafe0f57c42c32843d8a87029850f7fdeb1a3c439

Aliases

arxiv: 1312.6039 · arxiv_version: 1312.6039v1 · doi: 10.48550/arxiv.1312.6039 · pith_short_12: R4354HUOY52J · pith_short_16: R4354HUOY52J2XLX · pith_short_8: R4354HUO

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/R4354HUOY52J2XLXEFVK7YHVPR \
  | 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: 8f37de1e8ec7749d5d77216aafe0f57c42c32843d8a87029850f7fdeb1a3c439

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "776bc9975dd3503066df437018de77f1ace840ac5a31ef8528a78492ac0c6694",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-12-20T16:56:28Z",
    "title_canon_sha256": "d03e424003c78248be123dfbb2e3719aa48a1e9f4dd0fe3ab2f82a29b2063094"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6039",
    "kind": "arxiv",
    "version": 1
  }
}