Pith Number

pith:WC23SHBU

pith:2011:WC23SHBUTYFYBFYBAE6I6YUFIN

not attested not anchored not stored refs pending

Intersection cohomology of a rank one local system on the complement of a hyperplane-like divisor

A. Varchenko, D. Arinkin

arxiv:1106.5732 v1 · 2011-06-28 · 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{WC23SHBUTYFYBFYBAE6I6YUFIN}

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	2026-05-18T04:19:12.622105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0b5b91c349e0b809701013c8f628543761faaa1b5905fedebeba8f139c7e898

Aliases

arxiv: 1106.5732 · arxiv_version: 1106.5732v1 · doi: 10.48550/arxiv.1106.5732 · pith_short_12: WC23SHBUTYFY · pith_short_16: WC23SHBUTYFYBFYB · pith_short_8: WC23SHBU

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/WC23SHBUTYFYBFYBAE6I6YUFIN \
  | 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: b0b5b91c349e0b809701013c8f628543761faaa1b5905fedebeba8f139c7e898

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "511bb8aa48902e7b4c726590e3f4fd776266a60f3c4e01281f346d51c80d034c",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-06-28T17:27:08Z",
    "title_canon_sha256": "17456775117a29a1ec71454d29ffddaecd0cf55f54ab566d6656eb20e59f8adc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.5732",
    "kind": "arxiv",
    "version": 1
  }
}