Pith Number

pith:ZJLULOWR

pith:2014:ZJLULOWRRTGZFCDYIEW3AQWHOJ

not attested not anchored not stored refs pending

Some observations on filters with properties defined by open covers

Paul J. Szeptycki, Rodrigo Hern\'andez-Guti\'errez

arxiv:1405.5568 v2 · 2014-05-21 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZJLULOWRRTGZFCDYIEW3AQWHOJ}

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	2026-05-18T00:05:34.859132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca5745bad18ccd928878412db042c77254e9cfe4f05beb520aa4dc78c25d9ac9

Aliases

arxiv: 1405.5568 · arxiv_version: 1405.5568v2 · doi: 10.48550/arxiv.1405.5568 · pith_short_12: ZJLULOWRRTGZ · pith_short_16: ZJLULOWRRTGZFCDY · pith_short_8: ZJLULOWR

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/ZJLULOWRRTGZFCDYIEW3AQWHOJ \
  | 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: ca5745bad18ccd928878412db042c77254e9cfe4f05beb520aa4dc78c25d9ac9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82741ff45dd99eedb947151064b9b43a58e920d23f2ffe4e6f8f586d99cc8f61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2014-05-21T22:35:08Z",
    "title_canon_sha256": "b464c2659c2038b28fd45c5f3c34d29fe79a8a18255887d4e6319972566a57bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5568",
    "kind": "arxiv",
    "version": 2
  }
}