Pith Number

pith:J2RBVI3H

pith:2011:J2RBVI3HYW6P6PIEMJVDZM24BQ

not attested not anchored not stored refs pending

Albanese varieties of singular varieties over a perfect field

Henrik Russell

arxiv:1102.2278 v1 · 2011-02-11 · 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{J2RBVI3HYW6P6PIEMJVDZM24BQ}

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	2026-05-18T04:28:56.374583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea21aa367c5bcff3d04626a3cb35c0c3aeea089e40b9b6955b9c664b4986c90

Aliases

arxiv: 1102.2278 · arxiv_version: 1102.2278v1 · doi: 10.48550/arxiv.1102.2278 · pith_short_12: J2RBVI3HYW6P · pith_short_16: J2RBVI3HYW6P6PIE · pith_short_8: J2RBVI3H

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/J2RBVI3HYW6P6PIEMJVDZM24BQ \
  | 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: 4ea21aa367c5bcff3d04626a3cb35c0c3aeea089e40b9b6955b9c664b4986c90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a630937428375e25eb3e6fc4f1e79d5fdadb7a9118a4d179fb126b983ff3f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-02-11T04:29:04Z",
    "title_canon_sha256": "74939f0129f338b32728ffcb740c1b72b360b82b53204c1b8f241356bd5a97d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2278",
    "kind": "arxiv",
    "version": 1
  }
}