Pith Number

pith:R763YSY4

pith:2017:R763YSY45DQN3IIUTVDRFBYXFI

not attested not anchored not stored refs pending

Local dynamics of non-invertible maps near normal surface singularities

Matteo Ruggiero, William Gignac

arxiv:1704.04726 v2 · 2017-04-16 · math.DS · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R763YSY45DQN3IIUTVDRFBYXFI}

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	2026-05-18T00:06:12.442594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ffdbc4b1ce8e0dda1149d471287172a1aef0996c4a4e31c8f2993fac959a1c1

Aliases

arxiv: 1704.04726 · arxiv_version: 1704.04726v2 · doi: 10.48550/arxiv.1704.04726 · pith_short_12: R763YSY45DQN · pith_short_16: R763YSY45DQN3IIU · pith_short_8: R763YSY4

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/R763YSY45DQN3IIUTVDRFBYXFI \
  | 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: 8ffdbc4b1ce8e0dda1149d471287172a1aef0996c4a4e31c8f2993fac959a1c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df5380cb64a7eebd7d72a82a7f5b0323124fe0125a788492ea7d850f288dc07d",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-04-16T05:29:41Z",
    "title_canon_sha256": "b52274b87261479b2a533fbff8d7ba6c01ce1edea41f1baf0cc7f30442e6f51c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04726",
    "kind": "arxiv",
    "version": 2
  }
}