Pith Number

pith:7ZXPC7O4

pith:2015:7ZXPC7O4XCZRA56WK5IP62QBED

not attested not anchored not stored refs pending

On absolute linear Harbourne constants

Daniel Harrer, Justyna Szpond, Marcin Dumnicki

arxiv:1507.04080 v2 · 2015-07-15 · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZXPC7O4XCZRA56WK5IP62QBED}

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	2026-05-18T00:20:44.992078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe6ef17ddcb8b31077d65750ff6a0120cdabcbccd6a4cd711d22668ae3ad42a3

Aliases

arxiv: 1507.04080 · arxiv_version: 1507.04080v2 · doi: 10.48550/arxiv.1507.04080 · pith_short_12: 7ZXPC7O4XCZR · pith_short_16: 7ZXPC7O4XCZRA56W · pith_short_8: 7ZXPC7O4

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/7ZXPC7O4XCZRA56WK5IP62QBED \
  | 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: fe6ef17ddcb8b31077d65750ff6a0120cdabcbccd6a4cd711d22668ae3ad42a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba520989ea387c3495763d74269241957896d641cae6910ec5a2a40d391fc59b",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-07-15T04:37:43Z",
    "title_canon_sha256": "85d70794b35fdc08b04cf87da992fb5462082c06138f79eed2c8238ccccf63b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04080",
    "kind": "arxiv",
    "version": 2
  }
}