Pith Number

pith:EFRX2ERK

pith:2013:EFRX2ERKUHSSES42FKBJJ552ID

not attested not anchored not stored refs pending

Recurrence relations versus succession rules

Elisa Pergola, Renzo Pinzani, Simone Rinaldi, Stefano Bilotta

arxiv:1301.2967 v1 · 2013-01-14 · cs.DM · 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{EFRX2ERKUHSSES42FKBJJ552ID}

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	2026-05-18T03:36:27.709508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21637d122aa1e5224b9a2a8294f7ba40d3ce3448a40eb4d23c93f9e58adeb6e2

Aliases

arxiv: 1301.2967 · arxiv_version: 1301.2967v1 · doi: 10.48550/arxiv.1301.2967 · pith_short_12: EFRX2ERKUHSS · pith_short_16: EFRX2ERKUHSSES42 · pith_short_8: EFRX2ERK

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/EFRX2ERKUHSSES42FKBJJ552ID \
  | 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: 21637d122aa1e5224b9a2a8294f7ba40d3ce3448a40eb4d23c93f9e58adeb6e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c985f7d68e6d126da801f7c15dea5ae4a7c67cc88312037888b4887ee20fbc1",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-01-14T13:24:57Z",
    "title_canon_sha256": "0b62cb17eb1bf25227d3868e7d875c48c3dfbf44bc50f24fdeb493bd5b7e37e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2967",
    "kind": "arxiv",
    "version": 1
  }
}