Pith Number

pith:PYRBKDFU

pith:2016:PYRBKDFU44OTMB34WF54XKEJSB

not attested not anchored not stored refs pending

Relative $2$-Segal spaces

Matthew B. Young

arxiv:1611.09234 v2 · 2016-11-28 · math.RT · math.CT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYRBKDFU44OTMB34WF54XKEJSB}

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	2026-05-18T00:20:56.939555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e22150cb4e71d36077cb17bcba889907edee40815129d69197d1e076f230c2a

Aliases

arxiv: 1611.09234 · arxiv_version: 1611.09234v2 · doi: 10.48550/arxiv.1611.09234 · pith_short_12: PYRBKDFU44OT · pith_short_16: PYRBKDFU44OTMB34 · pith_short_8: PYRBKDFU

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/PYRBKDFU44OTMB34WF54XKEJSB \
  | 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: 7e22150cb4e71d36077cb17bcba889907edee40815129d69197d1e076f230c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d41f80bcbd8e9d6144fd432c6970ad70896e568db8ca2281a1ba59f0c8e9991",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2016-11-28T16:43:28Z",
    "title_canon_sha256": "0654a2b50ce5672f9d1be824deb318d3864b63311f59b1e5f1f940f947b8c30d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09234",
    "kind": "arxiv",
    "version": 2
  }
}