Pith Number

pith:QSKNBVG4

pith:2008:QSKNBVG43XXGHWQCU22L5ZGG7D

not attested not anchored not stored refs pending

La droite de Berkovich sur Z

J\'er\^ome Poineau

arxiv:0809.2880 v1 · 2008-09-17 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSKNBVG43XXGHWQCU22L5ZGG7D}

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	2026-05-18T04:00:16.293953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8494d0d4dcddee63da02a6b4bee4c6f8ecce8f00daf340034b824731c5bcba5e

Aliases

arxiv: 0809.2880 · arxiv_version: 0809.2880v1 · doi: 10.48550/arxiv.0809.2880 · pith_short_12: QSKNBVG43XXG · pith_short_16: QSKNBVG43XXGHWQC · pith_short_8: QSKNBVG4

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/QSKNBVG43XXGHWQCU22L5ZGG7D \
  | 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: 8494d0d4dcddee63da02a6b4bee4c6f8ecce8f00daf340034b824731c5bcba5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00411f5bc6e046710dfa93e266ce75341ecc60375857140b9a4990179431fed2",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-09-17T09:12:49Z",
    "title_canon_sha256": "3bf3fa4ca4fde05d22dfd416b48064d6c99a454f6975c9ab8358371b17209fef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2880",
    "kind": "arxiv",
    "version": 1
  }
}