Pith Number

pith:L6NCFVLU

pith:2007:L6NCFVLUCSETOYA6IAMQS6EMFS

not attested not anchored not stored refs pending

Champs de Hurwitz

Jos\'e Bertin (IF), Matthieu Romagny (IMJ)

arxiv:math/0701680 v1 · 2007-01-24 · 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{L6NCFVLUCSETOYA6IAMQS6EMFS}

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	2026-05-18T01:09:15.521659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f9a22d574148937601e401909788c2cb0a05b6007aeffd6bf486a6dc697af9e

Aliases

arxiv: math/0701680 · arxiv_version: math/0701680v1 · doi: 10.48550/arxiv.math/0701680 · pith_short_12: L6NCFVLUCSET · pith_short_16: L6NCFVLUCSETOYA6 · pith_short_8: L6NCFVLU

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/L6NCFVLUCSETOYA6IAMQS6EMFS \
  | 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: 5f9a22d574148937601e401909788c2cb0a05b6007aeffd6bf486a6dc697af9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0bf7fc1ca1d8a0dbb93facfd7f7a56c7a263c378213650037630c0995a96b55",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-01-24T14:08:33Z",
    "title_canon_sha256": "d308074d98662e04ca3d7eabd297f11c3695a0ea3008ce3d4afc11cf5a99c198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0701680",
    "kind": "arxiv",
    "version": 1
  }
}