Pith Number

pith:IMOWN543

pith:2012:IMOWN5435UNE3WRUHLEES4INWN

not attested not anchored not stored refs pending

Hyperplane sections and stable derived categories

Kazushi Ueda

arxiv:1207.1167 v2 · 2012-07-05 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IMOWN5435UNE3WRUHLEES4INWN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:51:37.794444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

431d66f79bed1a4dda343ac849710db345c85f601bfddf9a5e4125f27b6385fc

Aliases

arxiv: 1207.1167 · arxiv_version: 1207.1167v2 · doi: 10.48550/arxiv.1207.1167 · pith_short_12: IMOWN5435UNE · pith_short_16: IMOWN5435UNE3WRU · pith_short_8: IMOWN543

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/IMOWN5435UNE3WRUHLEES4INWN \
  | 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: 431d66f79bed1a4dda343ac849710db345c85f601bfddf9a5e4125f27b6385fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a1e4735ab7d32af25804d7e4a15bd74633f642cb937c3eb3277853caada9ac0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-07-05T06:47:43Z",
    "title_canon_sha256": "b5d2427513d6a924c45b9cd56cebf89aae96714edf403c27be03148e1a5a0fe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1167",
    "kind": "arxiv",
    "version": 2
  }
}