Pith Number

pith:OOTBCWG2

pith:2017:OOTBCWG2I3IWNZOREMNHZIS5I6

not attested not anchored not stored refs pending

Contact orderability up to conjugation

Kai Cieliebak, Leonid Polterovich, Yakov Eliashberg

arxiv:1709.09358 v1 · 2017-09-27 · math.SG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOTBCWG2I3IWNZOREMNHZIS5I6}

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	2026-05-18T00:25:52.906870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73a61158da46d166e5d1231a7ca25d479fdc90dc982d4fc0ef044ac22eae7dab

Aliases

arxiv: 1709.09358 · arxiv_version: 1709.09358v1 · doi: 10.48550/arxiv.1709.09358 · pith_short_12: OOTBCWG2I3IW · pith_short_16: OOTBCWG2I3IWNZOR · pith_short_8: OOTBCWG2

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/OOTBCWG2I3IWNZOREMNHZIS5I6 \
  | 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: 73a61158da46d166e5d1231a7ca25d479fdc90dc982d4fc0ef044ac22eae7dab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35cae56763c6a87c812dd0a2b85464cf5cbbeaecd794c78d57649e78d777563b",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2017-09-27T06:57:45Z",
    "title_canon_sha256": "7a8cafc8c7498bdadee10ea25344270793638f41e32bcf0a6bc9e283c2009563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09358",
    "kind": "arxiv",
    "version": 1
  }
}