Pith Number

pith:SNTA73EX

pith:2014:SNTA73EXFWM53D3MYLUMGBQOUZ

not attested not anchored not stored refs pending

Projective duality of arrangements with quadratic logarithmic vector fields

Stefan Tohaneanu

arxiv:1405.2122 v2 · 2014-05-08 · math.CO · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNTA73EXFWM53D3MYLUMGBQOUZ}

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	2026-05-18T02:16:21.144480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93660fec972d99dd8f6cc2e8c3060ea653c387a3fed50f9d4fa7a0880ef24bfc

Aliases

arxiv: 1405.2122 · arxiv_version: 1405.2122v2 · doi: 10.48550/arxiv.1405.2122 · pith_short_12: SNTA73EXFWM5 · pith_short_16: SNTA73EXFWM53D3M · pith_short_8: SNTA73EX

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/SNTA73EXFWM53D3MYLUMGBQOUZ \
  | 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: 93660fec972d99dd8f6cc2e8c3060ea653c387a3fed50f9d4fa7a0880ef24bfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57e94ba4b444c760c398b48a387b3b0fa2088f2c602ee6b07673dee61ae17303",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-08T23:31:17Z",
    "title_canon_sha256": "5d4783bbcf4e28860697631e494f21f3f13c24488eae1db9a91757f58da65a54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2122",
    "kind": "arxiv",
    "version": 2
  }
}