Pith Number

pith:2BC364SL

pith:2018:2BC364SLUR6MU5DIEF34UVCWBP

not attested not anchored not stored refs pending

Grammar-based Compression of Unranked Trees

Adri\`a Gasc\'on, Carl Philipp Reh, Kurt Sieber, Markus Lohrey, Sebastian Maneth

arxiv:1802.05490 v1 · 2018-02-15 · cs.DS · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BC364SLUR6MU5DIEF34UVCWBP}

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

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	2026-05-18T00:23:15.525358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d045bf724ba47cca74682177ca54560bc2bf2c4da115e671ab179ac7de8c5bd2

Aliases

arxiv: 1802.05490 · arxiv_version: 1802.05490v1 · doi: 10.48550/arxiv.1802.05490 · pith_short_12: 2BC364SLUR6M · pith_short_16: 2BC364SLUR6MU5DI · pith_short_8: 2BC364SL

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/2BC364SLUR6MU5DIEF34UVCWBP \
  | 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: d045bf724ba47cca74682177ca54560bc2bf2c4da115e671ab179ac7de8c5bd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a47a46319b823746c842e1670b4c3bd3a49c9c9cb41697bbcde7c6a8896540",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-15T11:34:51Z",
    "title_canon_sha256": "69cf0282137c3bced68f9abe23025f26640cd3e4bef1e55aa5b923b2c44f0b1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05490",
    "kind": "arxiv",
    "version": 1
  }
}