Pith Number

pith:YISF46I3

pith:2022:YISF46I3A4MKKDY5M2O6TKIW6H

not attested not anchored not stored refs pending

Connectedness and Cycle Spaces of Friends-and-Strangers Graphs

Alan Lee, Colin Defant, David Dong, Michelle Wei

arxiv:2209.01704 v1 · 2022-09-04 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YISF46I3A4MKKDY5M2O6TKIW6H}

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	2026-07-05T04:54:32.853964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2245e791b0718a50f1d669de9a916f1febee41a629284a93776a1cfec7589d5

Aliases

arxiv: 2209.01704 · arxiv_version: 2209.01704v1 · doi: 10.48550/arxiv.2209.01704 · pith_short_12: YISF46I3A4MK · pith_short_16: YISF46I3A4MKKDY5 · pith_short_8: YISF46I3

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/YISF46I3A4MKKDY5M2O6TKIW6H \
  | 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: c2245e791b0718a50f1d669de9a916f1febee41a629284a93776a1cfec7589d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c268de37a4a4ff4ad57bff9296f621ae1554802744505205c2b102f3ff5aacb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2022-09-04T22:51:36Z",
    "title_canon_sha256": "cb3f75b626095c5a3b6cbdb32aadfb8de79088fb09615ae8233a4c72f4664a90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.01704",
    "kind": "arxiv",
    "version": 1
  }
}