Pith Number

pith:TX5LVNFD

pith:2016:TX5LVNFDMC6N476DUR35VXHPHC

not attested not anchored not stored refs pending

The dualizing sheaf on first-order deformations of toric surface singularities

J\'anos Koll\'ar, Klaus Altmann

arxiv:1601.07805 v2 · 2016-01-28 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TX5LVNFDMC6N476DUR35VXHPHC}

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	2026-05-18T01:02:59.212295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dfabab4a360bcde7fc3a477dadcef3899ee5cb0f74d63899cf74922e91d4964

Aliases

arxiv: 1601.07805 · arxiv_version: 1601.07805v2 · doi: 10.48550/arxiv.1601.07805 · pith_short_12: TX5LVNFDMC6N · pith_short_16: TX5LVNFDMC6N476D · pith_short_8: TX5LVNFD

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/TX5LVNFDMC6N476DUR35VXHPHC \
  | 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: 9dfabab4a360bcde7fc3a477dadcef3899ee5cb0f74d63899cf74922e91d4964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5114a0ec72aef21ab0dd6766e59121f751f84ffa8446d0ae15f6f07b6883a557",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-01-28T15:41:21Z",
    "title_canon_sha256": "486c1057f14138e37123e0a96ef7cb9f0a8927c40b42ac3e68741600dda2694a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07805",
    "kind": "arxiv",
    "version": 2
  }
}