Pith Number

pith:2ZDIR52D

pith:2014:2ZDIR52DDQ7FOD2OPU6PIZFSJY

not attested not anchored not stored refs pending

Configuration spaces of complex and real spheres

Benjamin Howard, Igor Dolgachev

arxiv:1408.0375 v1 · 2014-08-02 · 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{2ZDIR52DDQ7FOD2OPU6PIZFSJY}

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	2026-05-18T02:45:57.244090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d64688f7431c3e570f4e7d3cf464b24e18d872bf8639e8ad50dc08b5647b886a

Aliases

arxiv: 1408.0375 · arxiv_version: 1408.0375v1 · doi: 10.48550/arxiv.1408.0375 · pith_short_12: 2ZDIR52DDQ7F · pith_short_16: 2ZDIR52DDQ7FOD2O · pith_short_8: 2ZDIR52D

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/2ZDIR52DDQ7FOD2OPU6PIZFSJY \
  | 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: d64688f7431c3e570f4e7d3cf464b24e18d872bf8639e8ad50dc08b5647b886a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d14ebd1a8f5781f26c14fd040e39cdf496e6a318354b94a8e73891dda306542",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-08-02T14:10:33Z",
    "title_canon_sha256": "065c598378af725f533103b09b85369029f05e9de4e597e9e79e3cf038e83fea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0375",
    "kind": "arxiv",
    "version": 1
  }
}