Pith Number

pith:YSPPI6HM

pith:2011:YSPPI6HMRBOWEPICSDDESIVFZT

not attested not anchored not stored refs pending

G-Fano threefolds, II

Yuri Prokhorov

arxiv:1101.3854 v5 · 2011-01-20 · 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{YSPPI6HMRBOWEPICSDDESIVFZT}

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	2026-05-18T01:21:45.529839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c49ef478ec885d623d0290c64922a5ccde87d560c80f220dc9456d0dec40102a

Aliases

arxiv: 1101.3854 · arxiv_version: 1101.3854v5 · doi: 10.48550/arxiv.1101.3854 · pith_short_12: YSPPI6HMRBOW · pith_short_16: YSPPI6HMRBOWEPIC · pith_short_8: YSPPI6HM

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/YSPPI6HMRBOWEPICSDDESIVFZT \
  | 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: c49ef478ec885d623d0290c64922a5ccde87d560c80f220dc9456d0dec40102a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6efa9ce5850778c8b84c1b2992a7c1684273534d5ebdd7c45d7bb2688a6fa8f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-01-20T09:40:36Z",
    "title_canon_sha256": "91740f6beee482e76e8db2c78ae98e1d87985fb2f36adec27a3ee53b0ccfa2d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3854",
    "kind": "arxiv",
    "version": 5
  }
}