Pith Number

pith:WY4MQJFW

pith:2014:WY4MQJFWZUQ7HZJ4YYC35SCL4U

not attested not anchored not stored refs pending

Postulation of disjoint unions of lines and a multiple point, II

E. Ballico

arxiv:1405.0121 v1 · 2014-05-01 · 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{WY4MQJFWZUQ7HZJ4YYC35SCL4U}

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	2026-05-18T02:52:48.961958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b638c824b6cd21f3e53cc605bec84be53e7840e8fa064177369bd3f6825fa41d

Aliases

arxiv: 1405.0121 · arxiv_version: 1405.0121v1 · doi: 10.48550/arxiv.1405.0121 · pith_short_12: WY4MQJFWZUQ7 · pith_short_16: WY4MQJFWZUQ7HZJ4 · pith_short_8: WY4MQJFW

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/WY4MQJFWZUQ7HZJ4YYC35SCL4U \
  | 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: b638c824b6cd21f3e53cc605bec84be53e7840e8fa064177369bd3f6825fa41d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1da5086be51583b5b1efdd6bb14215329008d30af26f5569b6e2e18afcc38d94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-05-01T09:54:18Z",
    "title_canon_sha256": "ad132c0ac73d763cdc894070826f2584bf13413931df7932384650db02a39686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0121",
    "kind": "arxiv",
    "version": 1
  }
}