Pith Number

pith:JTQJWCR3

pith:2013:JTQJWCR3A7RS7OZB7XFMIM7P3T

not attested not anchored not stored refs pending

Poisson deformations and birational geometry

Yoshinori Namikawa

arxiv:1305.1698 v6 · 2013-05-08 · 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{JTQJWCR3A7RS7OZB7XFMIM7P3T}

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	2026-05-18T02:54:47.056807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ce09b0a3b07e32fbb21fdcac433efdcd42d4bac6f118b6f2a8a1f41d48f510f

Aliases

arxiv: 1305.1698 · arxiv_version: 1305.1698v6 · doi: 10.48550/arxiv.1305.1698 · pith_short_12: JTQJWCR3A7RS · pith_short_16: JTQJWCR3A7RS7OZB · pith_short_8: JTQJWCR3

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/JTQJWCR3A7RS7OZB7XFMIM7P3T \
  | 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: 4ce09b0a3b07e32fbb21fdcac433efdcd42d4bac6f118b6f2a8a1f41d48f510f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46cd346d83e59ebb4916799180dd4067120177780f417cbebb3a517542da105a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-05-08T02:47:09Z",
    "title_canon_sha256": "3fb229d90b92630f1857c10104e99985cd92d44d036e08a8e0bfa25226e035d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1698",
    "kind": "arxiv",
    "version": 6
  }
}