Pith Number

pith:7R2ZAGQS

pith:2013:7R2ZAGQS3QELF37L7VD2MASLKW

not attested not anchored not stored refs pending

Towards a criterion for slope stability of Fano manifolds along divisors

Kento Fujita

arxiv:1301.4538 v1 · 2013-01-19 · math.AG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7R2ZAGQS3QELF37L7VD2MASLKW}

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	2026-05-18T03:35:56.436210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc75901a12dc08b2efebfd47a6024b5580db526145445a4c3f1a4da80283b040

Aliases

arxiv: 1301.4538 · arxiv_version: 1301.4538v1 · doi: 10.48550/arxiv.1301.4538 · pith_short_12: 7R2ZAGQS3QEL · pith_short_16: 7R2ZAGQS3QELF37L · pith_short_8: 7R2ZAGQS

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/7R2ZAGQS3QELF37L7VD2MASLKW \
  | 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: fc75901a12dc08b2efebfd47a6024b5580db526145445a4c3f1a4da80283b040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82c319e0dd5d25875ca28468b341781f4c7557efc2d73b0c543fb4844b760345",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-01-19T08:05:59Z",
    "title_canon_sha256": "91a65cbc7e01bb359de328e99c29a6e0679a837e2eb982f67c112bb3767bfa36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4538",
    "kind": "arxiv",
    "version": 1
  }
}