Pith Number

pith:ABIQ4RQP

pith:2015:ABIQ4RQPGAAGDQOCKHWRXM7C2X

not attested not anchored not stored refs pending

Pointed Castelnuovo numbers

Gavril Farkas, Nicola Tarasca

arxiv:1501.04882 v2 · 2015-01-20 · 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{ABIQ4RQPGAAGDQOCKHWRXM7C2X}

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	2026-05-18T01:25:30.757066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00510e460f300061c1c251ed1bb3e2d5dbbbc3d043f5b03e65de93ea72bb2196

Aliases

arxiv: 1501.04882 · arxiv_version: 1501.04882v2 · doi: 10.48550/arxiv.1501.04882 · pith_short_12: ABIQ4RQPGAAG · pith_short_16: ABIQ4RQPGAAGDQOC · pith_short_8: ABIQ4RQP

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/ABIQ4RQPGAAGDQOCKHWRXM7C2X \
  | 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: 00510e460f300061c1c251ed1bb3e2d5dbbbc3d043f5b03e65de93ea72bb2196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "054baff0f6de84b4126d882826d92c5445e788724143c721e793dd3d48dbdd7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-20T17:10:53Z",
    "title_canon_sha256": "3fe950cc1975dd60e1693d9e9ada60416db0c8a9a09a100db6099a3a83220d34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04882",
    "kind": "arxiv",
    "version": 2
  }
}