Pith Number

pith:SE3BVT4J

pith:2006:SE3BVT4JVYTGRPZYRUXMKUU7KT

not attested not anchored not stored refs pending

P\'{e}riodicit\'{e} de Kn\"{o}rrer \'{e}tendue

Fabrice Rosay (IF), Jos\'e Bertin (IF)

arxiv:math/0609400 v1 · 2006-09-14 · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SE3BVT4JVYTGRPZYRUXMKUU7KT}

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	2026-05-18T01:08:49.710741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91361acf89ae2668bf388d2ec5529f54e9f9a134bd51b346940d312c66796642

Aliases

arxiv: math/0609400 · arxiv_version: math/0609400v1 · doi: 10.48550/arxiv.math/0609400 · pith_short_12: SE3BVT4JVYTG · pith_short_16: SE3BVT4JVYTGRPZY · pith_short_8: SE3BVT4J

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/SE3BVT4JVYTGRPZYRUXMKUU7KT \
  | 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: 91361acf89ae2668bf388d2ec5529f54e9f9a134bd51b346940d312c66796642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dd0b8bf26cca3cb882cbc9280d5f201eb774a0cc19f4dc66b17fc75fcc532c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2006-09-14T13:12:03Z",
    "title_canon_sha256": "731d007e0ca75df852a89041f111ad065f42ab8847e4b47e15a37062ae974a59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0609400",
    "kind": "arxiv",
    "version": 1
  }
}