Pith Number

pith:RX4SYEDR

pith:2014:RX4SYEDRVY7HBOPXICAEMMOXGC

not attested not anchored not stored refs pending

Fermat and the number of fixed points of periodic flows

\'Alvaro Pelayo, Leonor Godinho, Silvia Sabatini

arxiv:1404.4541 v1 · 2014-04-17 · math.AT · math.GT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RX4SYEDRVY7HBOPXICAEMMOXGC}

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	2026-05-18T02:54:04.055149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8df92c1071ae3e70b9f740804631d730bbe37fb6dc19a59a5e07f4e2ec94a7ae

Aliases

arxiv: 1404.4541 · arxiv_version: 1404.4541v1 · doi: 10.48550/arxiv.1404.4541 · pith_short_12: RX4SYEDRVY7H · pith_short_16: RX4SYEDRVY7HBOPX · pith_short_8: RX4SYEDR

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/RX4SYEDRVY7HBOPXICAEMMOXGC \
  | 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: 8df92c1071ae3e70b9f740804631d730bbe37fb6dc19a59a5e07f4e2ec94a7ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f25b6b0e0cd58b939379cbdd39c7cc273dba7cb3313e21d9324c820234e777c1",
    "cross_cats_sorted": [
      "math.GT",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-04-17T14:37:10Z",
    "title_canon_sha256": "1f84b1ee1f42b266e597e344c97d93ed63fcaa0b2cf99f0614f5c94175aa2053"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4541",
    "kind": "arxiv",
    "version": 1
  }
}