Pith Number

pith:QJ4KMY55

pith:2011:QJ4KMY55CTDEQYLYJIIELJGQOD

not attested not anchored not stored refs pending

Exceptional Sequences on Rational C*-Surfaces

Andreas Hochenegger, Nathan Owen Ilten

arxiv:1106.4743 v2 · 2011-06-23 · 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{QJ4KMY55CTDEQYLYJIIELJGQOD}

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	2026-05-18T00:26:02.723656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8278a663bd14c64861784a1045a4d070f3382edc4a281118d751c62b2ccf3c6d

Aliases

arxiv: 1106.4743 · arxiv_version: 1106.4743v2 · doi: 10.48550/arxiv.1106.4743 · pith_short_12: QJ4KMY55CTDE · pith_short_16: QJ4KMY55CTDEQYLY · pith_short_8: QJ4KMY55

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/QJ4KMY55CTDEQYLYJIIELJGQOD \
  | 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: 8278a663bd14c64861784a1045a4d070f3382edc4a281118d751c62b2ccf3c6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4950280d309eff085678f81820cb6e579c1deb06a60440d06e823080f69cb76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-06-23T14:44:00Z",
    "title_canon_sha256": "a4cbb9163a92bb43035e3be8fc9aeeb0f0bc90e512c3f6c1f922a2a37e129e5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4743",
    "kind": "arxiv",
    "version": 2
  }
}