Pith Number

pith:DVJNV23K

pith:2013:DVJNV23KND337DLUI3LST5PPHM

not attested not anchored not stored refs pending

Contact structures on M \times S^2

Andr\'as I. Stipsicz, Diarmuid Crowley, Jonathan Bowden

arxiv:1305.3121 v3 · 2013-05-14 · math.SG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DVJNV23KND337DLUI3LST5PPHM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:15:43.142123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d52daeb6a68f7bf8d7446d729f5ef3b3efdf4a49e8ad32a2b85de07d0e99496

Aliases

arxiv: 1305.3121 · arxiv_version: 1305.3121v3 · doi: 10.48550/arxiv.1305.3121 · pith_short_12: DVJNV23KND33 · pith_short_16: DVJNV23KND337DLU · pith_short_8: DVJNV23K

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/DVJNV23KND337DLUI3LST5PPHM \
  | 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: 1d52daeb6a68f7bf8d7446d729f5ef3b3efdf4a49e8ad32a2b85de07d0e99496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dfb4975d1c466551da694631a588660c12bc5f47dcedeb1436d43d8e322717d",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2013-05-14T11:52:02Z",
    "title_canon_sha256": "12cb99ed5a596acd36ae7d41658b5df935841fda652851cb6bbe6222dbfac615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3121",
    "kind": "arxiv",
    "version": 3
  }
}