Pith Number

pith:D6RQKQZH

pith:2015:D6RQKQZHBGICOZRO5HSRVIY4AC

not attested not anchored not stored refs pending

The Torelli problem for Logarithmic bundles of hypersurface arrangements in the projective space

Elena Angelini

arxiv:1506.01931 v1 · 2015-06-05 · 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{D6RQKQZHBGICOZRO5HSRVIY4AC}

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	2026-05-18T01:55:58.892364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fa3054327099027662ee9e51aa31c00bb7615da60e26d5f660bf0f7383c2dd1

Aliases

arxiv: 1506.01931 · arxiv_version: 1506.01931v1 · doi: 10.48550/arxiv.1506.01931 · pith_short_12: D6RQKQZHBGIC · pith_short_16: D6RQKQZHBGICOZRO · pith_short_8: D6RQKQZH

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/D6RQKQZHBGICOZRO5HSRVIY4AC \
  | 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: 1fa3054327099027662ee9e51aa31c00bb7615da60e26d5f660bf0f7383c2dd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56672b39482a19926348b348735bd5c27769a61adcad16c197c0a11371a4ac58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-06-05T14:54:53Z",
    "title_canon_sha256": "4d38e859845f67d0397f0d71e7191c15c77a7ad45dfa53846a8db3029c08fd1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01931",
    "kind": "arxiv",
    "version": 1
  }
}