Pith Number

pith:C4T53OHF

pith:2014:C4T53OHFI7RRX4734I2Z66MUZG

not attested not anchored not stored refs pending

Divisorial Extractions from Singular Curves in Smooth 3-Folds, I

Tom Ducat

arxiv:1403.7614 v1 · 2014-03-29 · 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{C4T53OHFI7RRX4734I2Z66MUZG}

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	2026-05-18T01:03:06.722053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1727ddb8e547e31bf3fbe2359f7994c9b721d64f53f88080500496ca6a707a6c

Aliases

arxiv: 1403.7614 · arxiv_version: 1403.7614v1 · doi: 10.48550/arxiv.1403.7614 · pith_short_12: C4T53OHFI7RR · pith_short_16: C4T53OHFI7RRX473 · pith_short_8: C4T53OHF

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/C4T53OHFI7RRX4734I2Z66MUZG \
  | 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: 1727ddb8e547e31bf3fbe2359f7994c9b721d64f53f88080500496ca6a707a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b0a8764282927afa6986133c779bf5a43877926be05d1e32007bc0f06cb2b88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-03-29T10:09:29Z",
    "title_canon_sha256": "2483b275bf373ea52188d3d8bdc14784c297c5b056336ef49a36efb0b7fdb440"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7614",
    "kind": "arxiv",
    "version": 1
  }
}