Pith Number

pith:DXF6O24N

pith:2014:DXF6O24NTXJWER4HX733HEQCDU

not attested not anchored not stored refs pending

Monotone retractability and retractional skeletons

Marek C\'uth, Ond\v{r}ej F.K. Kalenda

arxiv:1403.4480 v1 · 2014-03-18 · math.GN · 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{DXF6O24NTXJWER4HX733HEQCDU}

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	2026-05-18T02:38:29.687567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dcbe76b8d9dd3624787bff7b392021d38f3d1065a87a320094af232cf35eb2b

Aliases

arxiv: 1403.4480 · arxiv_version: 1403.4480v1 · doi: 10.48550/arxiv.1403.4480 · pith_short_12: DXF6O24NTXJW · pith_short_16: DXF6O24NTXJWER4H · pith_short_8: DXF6O24N

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/DXF6O24NTXJWER4HX733HEQCDU \
  | 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: 1dcbe76b8d9dd3624787bff7b392021d38f3d1065a87a320094af232cf35eb2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a041ade33f5e1cf4e0a6dbd1638e02594b434da752d6d9c9be5f1713f921350",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2014-03-18T14:42:49Z",
    "title_canon_sha256": "125e9aadb0664a4e9ddad3a20a6a8baf063145d3a03c21670a3dd4988d6071f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4480",
    "kind": "arxiv",
    "version": 1
  }
}