Pith Number

pith:DOY3HBDD

pith:2009:DOY3HBDDO67PT7534PN4J6TAS3

not attested not anchored not stored refs pending

Convexity package for momentum maps on contact manifolds

River Chiang, Yael Karshon

arxiv:0910.5637 v2 · 2009-10-29 · math.SG · math.CO · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOY3HBDDO67PT7534PN4J6TAS3}

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	2026-05-18T02:41:51.083805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bb1b3846377bef9ffbbe3dbc4fa6096dc0dddbae2ada823da6d1b0b9593b660

Aliases

arxiv: 0910.5637 · arxiv_version: 0910.5637v2 · doi: 10.48550/arxiv.0910.5637 · pith_short_12: DOY3HBDDO67P · pith_short_16: DOY3HBDDO67PT753 · pith_short_8: DOY3HBDD

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/DOY3HBDDO67PT7534PN4J6TAS3 \
  | 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: 1bb1b3846377bef9ffbbe3dbc4fa6096dc0dddbae2ada823da6d1b0b9593b660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81211807d0371601c477d1e2a21e9cf24530778a4aa6c00dbcf71e226fb7cf55",
    "cross_cats_sorted": [
      "math.CO",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2009-10-29T19:21:33Z",
    "title_canon_sha256": "920933c72259a7b4c16c2a414413befe764e6f289398b26add4dcc77a352c797"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5637",
    "kind": "arxiv",
    "version": 2
  }
}