Pith Number

pith:SQF53D5N

pith:2015:SQF53D5NQWSMZJ2G4WM2SJFWBS

not attested not anchored not stored refs pending

Exact triangle for fibered Dehn twists

Chris Woodward, Katrin Wehrheim

arxiv:1503.07614 v5 · 2015-03-26 · 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{SQF53D5NQWSMZJ2G4WM2SJFWBS}

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	2026-05-17T23:52:08.770045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

940bdd8fad85a4cca746e599a924b60c947f92b4b1a9222fb3ffd48de53b7cf3

Aliases

arxiv: 1503.07614 · arxiv_version: 1503.07614v5 · doi: 10.48550/arxiv.1503.07614 · pith_short_12: SQF53D5NQWSM · pith_short_16: SQF53D5NQWSMZJ2G · pith_short_8: SQF53D5N

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/SQF53D5NQWSMZJ2G4WM2SJFWBS \
  | 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: 940bdd8fad85a4cca746e599a924b60c947f92b4b1a9222fb3ffd48de53b7cf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dccce02ad591609511a42104ccd88aebb93f6207ed41c23b3f7d3f92e5334cf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2015-03-26T04:08:41Z",
    "title_canon_sha256": "c3261a78c940dbf310f082d869529097bacd13ca326caed429202f8f9d4dc90c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07614",
    "kind": "arxiv",
    "version": 5
  }
}