Pith Number

pith:EZB25HFG

pith:2014:EZB25HFGJEQOOZ73JRVBPT23ZS

not attested not anchored not stored refs pending

K\"ahler packings and Seshadri constants on projective complex surfaces

Thomas Eckl

arxiv:1409.3664 v2 · 2014-09-12 · math.AG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZB25HFGJEQOOZ73JRVBPT23ZS}

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	2026-05-18T01:04:50.706423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2643ae9ca64920e767fb4c6a17cf5bcc9bd9c06e1b41f6e70d38283092e66ae5

Aliases

arxiv: 1409.3664 · arxiv_version: 1409.3664v2 · doi: 10.48550/arxiv.1409.3664 · pith_short_12: EZB25HFGJEQO · pith_short_16: EZB25HFGJEQOOZ73 · pith_short_8: EZB25HFG

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/EZB25HFGJEQOOZ73JRVBPT23ZS \
  | 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: 2643ae9ca64920e767fb4c6a17cf5bcc9bd9c06e1b41f6e70d38283092e66ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d53ddc601e5d019550346117f744468364409b10f266506f04b243a0f0acc2f4",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-09-12T07:41:35Z",
    "title_canon_sha256": "19901fdbd753530e25e301f7ff4b52f6562b839b6916a589e2c85dc318a85bc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3664",
    "kind": "arxiv",
    "version": 2
  }
}