Pith Number

pith:Y7GJC7YU

pith:2018:Y7GJC7YUGNTL5NPEBI25Z26LYB

not attested not anchored not stored refs pending

A fixed point theorem for commuting families of relational homomorphisms. Application to metric spaces, oriented graphs and ordered sets

Amine Khamsi, Maurice Pouzet

arxiv:1805.02594 v1 · 2018-05-07 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7GJC7YUGNTL5NPEBI25Z26LYB}

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	2026-05-18T00:16:39.555969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7cc917f143366beb5e40a35dcebcbc0642badd2383ea616ddf025cee4d6ce3a

Aliases

arxiv: 1805.02594 · arxiv_version: 1805.02594v1 · doi: 10.48550/arxiv.1805.02594 · pith_short_12: Y7GJC7YUGNTL · pith_short_16: Y7GJC7YUGNTL5NPE · pith_short_8: Y7GJC7YU

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/Y7GJC7YUGNTL5NPEBI25Z26LYB \
  | 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: c7cc917f143366beb5e40a35dcebcbc0642badd2383ea616ddf025cee4d6ce3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fa205d0e5ed51f62d03e51720af2a5d9e925d2c79f2207a408eb9ad8164b024",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-05-07T16:11:59Z",
    "title_canon_sha256": "eb441ddc58003ac278d02518169896ffc47a398840d4dfd1fd8c8f385680661f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02594",
    "kind": "arxiv",
    "version": 1
  }
}