Pith Number

pith:FBXQCHZS

pith:2015:FBXQCHZSNGLEZKKNYUWHMZNDZB

not attested not anchored not stored refs pending

On a preorder relation for contractions

Dan Timotin

arxiv:1507.07128 v2 · 2015-07-25 · 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{FBXQCHZSNGLEZKKNYUWHMZNDZB}

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	2026-05-18T01:13:40.159144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

286f011f3269964ca94dc52c7665a3c85ec0d0054bc0baf554dcf5ba75f01878

Aliases

arxiv: 1507.07128 · arxiv_version: 1507.07128v2 · doi: 10.48550/arxiv.1507.07128 · pith_short_12: FBXQCHZSNGLE · pith_short_16: FBXQCHZSNGLEZKKN · pith_short_8: FBXQCHZS

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/FBXQCHZSNGLEZKKNYUWHMZNDZB \
  | 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: 286f011f3269964ca94dc52c7665a3c85ec0d0054bc0baf554dcf5ba75f01878

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bec630ce3d2fe2f4dc1b40e2ca19538c344ddd67cda6cad69800fbba922beb98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2015-07-25T19:54:07Z",
    "title_canon_sha256": "bd0f254618a6bf24a22f1eee8735b1350f350b4b2b7974851ad272def0e6726d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07128",
    "kind": "arxiv",
    "version": 2
  }
}