Pith Number

pith:UBV5ASPY

pith:2010:UBV5ASPYKVO2DP3756TLU4BR2J

not attested not anchored not stored refs pending

The locus of Hodge classes in an admissible variation of mixed Hodge structure

Christian Schnell, Gregory Pearlstein, Patrick Brosnan

arxiv:1002.4422 v3 · 2010-02-23 · 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{UBV5ASPYKVO2DP3756TLU4BR2J}

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	2026-05-18T03:37:53.523690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a06bd049f8555da1bf7fefa6ba7031d253c668dbb45eac2f05df63429156e015

Aliases

arxiv: 1002.4422 · arxiv_version: 1002.4422v3 · doi: 10.48550/arxiv.1002.4422 · pith_short_12: UBV5ASPYKVO2 · pith_short_16: UBV5ASPYKVO2DP37 · pith_short_8: UBV5ASPY

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/UBV5ASPYKVO2DP3756TLU4BR2J \
  | 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: a06bd049f8555da1bf7fefa6ba7031d253c668dbb45eac2f05df63429156e015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dea893e79adb52acd79cbda780278589b532d29d3c817629192f76c99cfa4d81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-02-23T21:31:42Z",
    "title_canon_sha256": "9330bd56948b7573448b63dd17225b9178f9f4807e1a1a3940e2fe1290962729"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4422",
    "kind": "arxiv",
    "version": 3
  }
}