Pith Number

pith:IWNXFQUA

pith:2017:IWNXFQUANM4CYOT2WAJTWKTSYM

not attested not anchored not stored refs pending

Martin boundary covers Floyd boundary

Ilya Gekhtman, Leonid Potyagailo, Victor Gerasimov, Wenyuan Yang

arxiv:1708.02133 v3 · 2017-08-07 · math.GR · math.DS · math.GT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IWNXFQUANM4CYOT2WAJTWKTSYM}

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	2026-05-18T00:28:40.527460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

459b72c2806b382c3a7ab0133b2a72c32c0d3825269fb0de20871097b1686e25

Aliases

arxiv: 1708.02133 · arxiv_version: 1708.02133v3 · doi: 10.48550/arxiv.1708.02133 · pith_short_12: IWNXFQUANM4C · pith_short_16: IWNXFQUANM4CYOT2 · pith_short_8: IWNXFQUA

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/IWNXFQUANM4CYOT2WAJTWKTSYM \
  | 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: 459b72c2806b382c3a7ab0133b2a72c32c0d3825269fb0de20871097b1686e25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca63d2697e42ce6382ef56ce28ae49269cf6300946c3dd7ec9c04d5d6eee7366",
    "cross_cats_sorted": [
      "math.DS",
      "math.GT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-08-07T14:37:26Z",
    "title_canon_sha256": "380460d390e4d1f9a935532bb44940a0d33684f24b9f6fb2a8a67a23eff1f48f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02133",
    "kind": "arxiv",
    "version": 3
  }
}