Pith Number

pith:IAOS2FLK

pith:2019:IAOS2FLKI7Z3BNK6ZBAZJTILYG

not attested not anchored not stored refs pending

A Combinatorial Problem Solved by a Meta-Fibonacci Recurrence Relation

Eric Sundberg, Ramin Naimi

arxiv:1902.02929 v1 · 2019-02-08 · 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{IAOS2FLKI7Z3BNK6ZBAZJTILYG}

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	2026-05-17T23:54:28.799620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401d2d156a47f3b0b55ec84194cd0bc1be2715aac80dfd5f23f979e439b77595

Aliases

arxiv: 1902.02929 · arxiv_version: 1902.02929v1 · doi: 10.48550/arxiv.1902.02929 · pith_short_12: IAOS2FLKI7Z3 · pith_short_16: IAOS2FLKI7Z3BNK6 · pith_short_8: IAOS2FLK

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/IAOS2FLKI7Z3BNK6ZBAZJTILYG \
  | 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: 401d2d156a47f3b0b55ec84194cd0bc1be2715aac80dfd5f23f979e439b77595

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12521e0ec5db14f543e5a391c494ff1e744819e0072b498f9075a5e6f25ee319",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-02-08T03:55:07Z",
    "title_canon_sha256": "6f72314514b31946e95df66c7bf41005296dff769db15b9c7662473ae99063ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02929",
    "kind": "arxiv",
    "version": 1
  }
}