Pith Number

pith:B5FESBWF

pith:2016:B5FESBWFOTTU6JF2FXVWWCARCD

not attested not anchored not stored refs pending

Restrictions on Seshadri constants on surfaces

Halszka Tutaj-Gasinska, Justyna Szpond, Lucja Farnik, Tomasz Szemberg

arxiv:1602.08984 v1 · 2016-02-29 · 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{B5FESBWFOTTU6JF2FXVWWCARCD}

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	2026-05-18T00:41:23.210381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f4a4906c574e74f24ba2deb6b081110f1a383bb660851f3d5a4a34e298c91d8

Aliases

arxiv: 1602.08984 · arxiv_version: 1602.08984v1 · doi: 10.48550/arxiv.1602.08984 · pith_short_12: B5FESBWFOTTU · pith_short_16: B5FESBWFOTTU6JF2 · pith_short_8: B5FESBWF

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/B5FESBWFOTTU6JF2FXVWWCARCD \
  | 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: 0f4a4906c574e74f24ba2deb6b081110f1a383bb660851f3d5a4a34e298c91d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6c82fa8f87e831bf4383d728c1774d3ab5dd778b5c3b764dbf3c044d9299532",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-02-29T14:44:32Z",
    "title_canon_sha256": "73e0936088db0b4994c6995c31f8e2a90ea496fd0d43c850dbcc21f9b9797339"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08984",
    "kind": "arxiv",
    "version": 1
  }
}