Pith Number

pith:5OSCWF3P

pith:1999:5OSCWF3PMXX32DYE72QDQRZ34C

not attested not anchored not stored refs pending

Configuration spaces with summable labels

Paolo Salvatore

arxiv:math/9907073 v1 · 1999-07-12 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OSCWF3PMXX32DYE72QDQRZ34C}

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	2026-05-18T01:05:32.854995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eba42b176f65efbd0f04fea038473be08d54fac1c30a28d57bc4a68742783b1c

Aliases

arxiv: math/9907073 · arxiv_version: math/9907073v1 · doi: 10.48550/arxiv.math/9907073 · pith_short_12: 5OSCWF3PMXX3 · pith_short_16: 5OSCWF3PMXX32DYE · pith_short_8: 5OSCWF3P

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/5OSCWF3PMXX32DYE72QDQRZ34C \
  | 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: eba42b176f65efbd0f04fea038473be08d54fac1c30a28d57bc4a68742783b1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2edb0e21e445190d92a2fa5d79429d688f08611e3375678e22b58f16599ec614",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "1999-07-12T15:22:08Z",
    "title_canon_sha256": "ca445896b188f8d0293eb1424caf064377c861ff32a68f43963b898e1ea35b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9907073",
    "kind": "arxiv",
    "version": 1
  }
}