Pith Number

pith:XB3P5IVM

pith:1994:XB3P5IVM4K45NKXYW27HE3G42C

not attested not anchored not stored refs pending

Factorization and Reflexivity on Fock spaces

Alvaro Arias, Gelu Popescu

arxiv:math/9404209 v1 · 1994-04-14 · 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{XB3P5IVM4K45NKXYW27HE3G42C}

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	2026-05-18T01:05:51.504231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b876fea2ace2b9d6aaf8b6be726cdcd0bec2ae2466aa39a818f27482ee2b9229

Aliases

arxiv: math/9404209 · arxiv_version: math/9404209v1 · doi: 10.48550/arxiv.math/9404209 · pith_short_12: XB3P5IVM4K45 · pith_short_16: XB3P5IVM4K45NKXY · pith_short_8: XB3P5IVM

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/XB3P5IVM4K45NKXYW27HE3G42C \
  | 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: b876fea2ace2b9d6aaf8b6be726cdcd0bec2ae2466aa39a818f27482ee2b9229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c953236f3d51ec201d65224940ec981e1fef2651d288e210c67c925c385f316",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "1994-04-14T16:07:37Z",
    "title_canon_sha256": "029e7378da48e236a1517aec1c77caeb0b0086b4880ccd96479e9ee00f667454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9404209",
    "kind": "arxiv",
    "version": 1
  }
}