Pith Number

pith:2XHJWRQZ

pith:2017:2XHJWRQZCXMCNDNGQTVKFR4PIV

not attested not anchored not stored refs pending

On coherent sheaves of small length on the affine plane

Andrea T. Ricolfi, Riccardo Moschetti

arxiv:1708.03969 v1 · 2017-08-13 · 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{2XHJWRQZCXMCNDNGQTVKFR4PIV}

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	2026-05-18T00:38:07.386384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5ce9b461915d8268da684eaa2c78f4575b4ec7f80655b1998b5e306a832473e

Aliases

arxiv: 1708.03969 · arxiv_version: 1708.03969v1 · doi: 10.48550/arxiv.1708.03969 · pith_short_12: 2XHJWRQZCXMC · pith_short_16: 2XHJWRQZCXMCNDNG · pith_short_8: 2XHJWRQZ

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/2XHJWRQZCXMCNDNGQTVKFR4PIV \
  | 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: d5ce9b461915d8268da684eaa2c78f4575b4ec7f80655b1998b5e306a832473e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e581773a6cda0e744cf471c140d3fb9a691c670d40d231f67d7ccae795cf2c94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-08-13T21:59:21Z",
    "title_canon_sha256": "b3afdd50da90411f3f25de69a50b53a492aef84db49825f932a73be0f3b67f7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03969",
    "kind": "arxiv",
    "version": 1
  }
}