Pith Number

pith:XQM5FBN6

pith:2021:XQM5FBN6VULI5DNF4STLRVJIDR

not attested not anchored not stored refs pending

Fano manifolds with big tangent bundle: a characterisation of $V_5$

Andreas H\"oring, Jie Liu

arxiv:2110.07237 v1 · 2021-10-14 · 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{XQM5FBN6VULI5DNF4STLRVJIDR}

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	2026-07-05T03:22:40.406332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc19d285bead168e8da5e4a6b8d5281c4777e00d6d6ccae73285932ac561bc5b

Aliases

arxiv: 2110.07237 · arxiv_version: 2110.07237v1 · doi: 10.48550/arxiv.2110.07237 · pith_short_12: XQM5FBN6VULI · pith_short_16: XQM5FBN6VULI5DNF · pith_short_8: XQM5FBN6

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/XQM5FBN6VULI5DNF4STLRVJIDR \
  | 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: bc19d285bead168e8da5e4a6b8d5281c4777e00d6d6ccae73285932ac561bc5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17bbd6abe6f4724bb91dfb6f7b6f60ec581fb0b7e9dec4b2648208d8cb1048d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-10-14T09:05:57Z",
    "title_canon_sha256": "3be2bd67c2a7098acd105ea1efb243c15363bf003de7823a712ce8025eb50bac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.07237",
    "kind": "arxiv",
    "version": 1
  }
}