Pith Number

pith:SMQVVHUH

pith:2020:SMQVVHUH2D675L6WN4IEILQUS6

not attested not anchored not stored refs pending

Prisoners, Rooms, and Lightswitches

Daniel M. Kane, Scott Duke Kominers

arxiv:2009.08575 v1 · 2020-09-18 · cs.DC · cs.DM · cs.GT · math.CO · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMQVVHUH2D675L6WN4IEILQUS6}

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	2026-07-05T01:36:19.956445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93215a9e87d0fdfeafd66f10442e1497b07c9833e34d941be82f105bc8e48325

Aliases

arxiv: 2009.08575 · arxiv_version: 2009.08575v1 · doi: 10.48550/arxiv.2009.08575 · pith_short_12: SMQVVHUH2D67 · pith_short_16: SMQVVHUH2D675L6W · pith_short_8: SMQVVHUH

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/SMQVVHUH2D675L6WN4IEILQUS6 \
  | 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: 93215a9e87d0fdfeafd66f10442e1497b07c9833e34d941be82f105bc8e48325

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97de67952d0bf36038e600c79fbb42f73156ac5e283d44c7397258883c5f4f59",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.GT",
      "math.CO",
      "math.HO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2020-09-18T01:05:22Z",
    "title_canon_sha256": "b8e19a5d4125bbc0bff20b6f339324170fce394083ca04d4a59560353bb6ad05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08575",
    "kind": "arxiv",
    "version": 1
  }
}