Pith Number

pith:JP7IALFO

pith:2013:JP7IALFOAG6ESJIMDGAT7C7S7S

not attested not anchored not stored refs pending

Filtrations induced by continuous functions

Barbara Di Fabio, Patrizio Frosini

arxiv:1304.1268 v1 · 2013-04-04 · math.GN · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JP7IALFOAG6ESJIMDGAT7C7S7S}

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	2026-05-18T03:29:04.125430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bfe802cae01bc49250c19813f8bf2fcb1cec059330aff625625e24ebe1b3c4f

Aliases

arxiv: 1304.1268 · arxiv_version: 1304.1268v1 · doi: 10.48550/arxiv.1304.1268 · pith_short_12: JP7IALFOAG6E · pith_short_16: JP7IALFOAG6ESJIM · pith_short_8: JP7IALFO

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/JP7IALFOAG6ESJIMDGAT7C7S7S \
  | 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: 4bfe802cae01bc49250c19813f8bf2fcb1cec059330aff625625e24ebe1b3c4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b1019cd8812e0fd173c22d264605c11a2b49133c1e00aaabf6da989063d81ba",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2013-04-04T08:32:56Z",
    "title_canon_sha256": "f3826c7f409c6036dd904191f4064dcfdc7272946aee9d0d812fa7895d3f31d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1268",
    "kind": "arxiv",
    "version": 1
  }
}