Pith Number

pith:PGM5ALJY

pith:2013:PGM5ALJYVRSRGYVYXMVVPVN5VJ

not attested not anchored not stored refs pending

The Hodge spectrum of analytic germs on isolated surface singularities

Andr\'as N\'emethi, Maciej Borodzik

arxiv:1308.5080 v1 · 2013-08-23 · math.AG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGM5ALJYVRSRGYVYXMVVPVN5VJ}

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	2026-05-18T03:15:17.367799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7999d02d38ac651362b8bb2b57d5bdaa6834ba4e955520d6cd01cc4f2c433b26

Aliases

arxiv: 1308.5080 · arxiv_version: 1308.5080v1 · doi: 10.48550/arxiv.1308.5080 · pith_short_12: PGM5ALJYVRSR · pith_short_16: PGM5ALJYVRSRGYVY · pith_short_8: PGM5ALJY

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/PGM5ALJYVRSRGYVYXMVVPVN5VJ \
  | 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: 7999d02d38ac651362b8bb2b57d5bdaa6834ba4e955520d6cd01cc4f2c433b26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5771ff81e5392f17f280bcb9ea9e0d8a5341bceb82a50a10bee0bb382d84e069",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-08-23T09:30:54Z",
    "title_canon_sha256": "207429aa6036e6af8aafca67ca0e317ecad08e97d9ddc994ad9d0c832c0758da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5080",
    "kind": "arxiv",
    "version": 1
  }
}