Pith Number

pith:R372AXYU

pith:2009:R372AXYU34ZFH2FOCOWLGGSOQV

not attested not anchored not stored refs pending

Formality and splitting of real non-abelian mixed Hodge structures

J. P. Pridham

arxiv:0902.0770 v3 · 2009-02-04 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R372AXYU34ZFH2FOCOWLGGSOQV}

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	2026-05-18T02:43:59.597582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8effa05f14df3253e8ae13acb31a4e855a44846c757b4383b9b82f26997b78f3

Aliases

arxiv: 0902.0770 · arxiv_version: 0902.0770v3 · doi: 10.48550/arxiv.0902.0770 · pith_short_12: R372AXYU34ZF · pith_short_16: R372AXYU34ZFH2FO · pith_short_8: R372AXYU

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/R372AXYU34ZFH2FOCOWLGGSOQV \
  | 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: 8effa05f14df3253e8ae13acb31a4e855a44846c757b4383b9b82f26997b78f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8e13a23c4e0b97d5b0000651afc06449f3641d92ef8d54bd38a5fff9cc8adf0",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-02-04T18:48:22Z",
    "title_canon_sha256": "a62b7d7db1a488ee9c70c14ce1da0d175515e0d6c27d4cab80edbcc4601fb393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0770",
    "kind": "arxiv",
    "version": 3
  }
}