Pith Number

pith:D2QWRL5W

pith:2016:D2QWRL5WXHC357TH3W3QRKNBRV

not attested not anchored not stored refs pending

From Dynamics to Contact and Symplectic Topology and Back

Jo Nelson

arxiv:1611.02676 v1 · 2016-11-08 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2QWRL5WXHC357TH3W3QRKNBRV}

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	2026-05-18T00:59:51.244914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea168afb6b9c5befe67ddb708a9a18d55febf0f26a2f5d78b42f0402df442ca

Aliases

arxiv: 1611.02676 · arxiv_version: 1611.02676v1 · doi: 10.48550/arxiv.1611.02676 · pith_short_12: D2QWRL5WXHC3 · pith_short_16: D2QWRL5WXHC357TH · pith_short_8: D2QWRL5W

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/D2QWRL5WXHC357TH3W3QRKNBRV \
  | 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: 1ea168afb6b9c5befe67ddb708a9a18d55febf0f26a2f5d78b42f0402df442ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a2df93fa2f303bcad09e61a503bfa0bdc76eb90198c0ad0c7a195b296757248",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2016-11-08T20:14:47Z",
    "title_canon_sha256": "ee0ee72860f84a062cd0728229923e469ba3425606f1e13bc9e4bce2cef559bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.02676",
    "kind": "arxiv",
    "version": 1
  }
}