Pith Number

pith:QYH5FBJQ

pith:2009:QYH5FBJQQ2F3UDFR7DW5T4AJI7

not attested not anchored not stored refs pending

Hitting Diamonds and Growing Cacti

Gwena\"el Joret, Samuel Fiorini, Ugo Pietropaoli

arxiv:0911.4366 v2 · 2009-11-23 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYH5FBJQQ2F3UDFR7DW5T4AJI7}

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	2026-05-18T02:10:37.545982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860fd28530868bba0cb1f8edd9f00947c79fca130d091d76f12d2defaebe7ac1

Aliases

arxiv: 0911.4366 · arxiv_version: 0911.4366v2 · doi: 10.48550/arxiv.0911.4366 · pith_short_12: QYH5FBJQQ2F3 · pith_short_16: QYH5FBJQQ2F3UDFR · pith_short_8: QYH5FBJQ

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/QYH5FBJQQ2F3UDFR7DW5T4AJI7 \
  | 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: 860fd28530868bba0cb1f8edd9f00947c79fca130d091d76f12d2defaebe7ac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3d58fa73e2f82f259106e01d112bc10118f904146d5dcee9e065cdae6fbf278",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-11-23T11:14:06Z",
    "title_canon_sha256": "dc336ab3ff050eeed8b9a178523f30785839e3356e06c65fb88820507abc93d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4366",
    "kind": "arxiv",
    "version": 2
  }
}