Pith Number

pith:QHSBPLRP

pith:1997:QHSBPLRPUU76YN5Z3JQZYNRQDO

not attested not anchored not stored refs pending

Minimal even sets of nodes

Stephan Endrass

arxiv:alg-geom/9710025 v1 · 1997-10-20 · alg-geom · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHSBPLRPUU76YN5Z3JQZYNRQDO}

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.

Cited by

1 paper in Pith

Nodal surfaces in $\mathbb{P}^3$ and coding theory

Receipt and verification

First computed	2026-07-04T14:10:03.404291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e417ae2fa53fec37b9da619c36301b836980985533e59d377f480806a08910

Aliases

arxiv: alg-geom/9710025 · arxiv_version: alg-geom/9710025v1 · doi: 10.48550/arxiv.alg-geom/9710025 · pith_short_12: QHSBPLRPUU76 · pith_short_16: QHSBPLRPUU76YN5Z · pith_short_8: QHSBPLRP

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/QHSBPLRPUU76YN5Z3JQZYNRQDO \
  | 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: 81e417ae2fa53fec37b9da619c36301b836980985533e59d377f480806a08910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e57580c7b6558bbe635b429c2fc4b4feeade89901f9f21b00114cf07e364e158",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1997-10-20T10:49:54Z",
    "title_canon_sha256": "e4fb0aef015230964db8b302aea59c799a569d2bc661109dce3bd6273af0edf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9710025",
    "kind": "arxiv",
    "version": 1
  }
}