Pith Number

pith:I4OD7X25

pith:2013:I4OD7X25UQOQDFFAMEJ6PB2KK2

not attested not anchored not stored refs pending

Links of singularities up to regular homotopy

Andr\'as N\'emethi, Andr\'as Sz\H{u}cs, Atsuko Katanaga

arxiv:1310.4976 v1 · 2013-10-18 · math.AG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4OD7X25UQOQDFFAMEJ6PB2KK2}

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	2026-05-18T03:10:01.742192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471c3fdf5da41d0194a06113e7874a569f960df4e3b8d9429ff5017cbcb4b172

Aliases

arxiv: 1310.4976 · arxiv_version: 1310.4976v1 · doi: 10.48550/arxiv.1310.4976 · pith_short_12: I4OD7X25UQOQ · pith_short_16: I4OD7X25UQOQDFFA · pith_short_8: I4OD7X25

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/I4OD7X25UQOQDFFAMEJ6PB2KK2 \
  | 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: 471c3fdf5da41d0194a06113e7874a569f960df4e3b8d9429ff5017cbcb4b172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d1d2df9e24803d8f132da3b1160e112c24c0ef8cea44d1317a14ad4e5677a99",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-18T11:34:17Z",
    "title_canon_sha256": "292510bb5ae2242360c4baa0bcb8c548b30b59bd0a6c66bd6704fe0b34521190"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4976",
    "kind": "arxiv",
    "version": 1
  }
}