Pith Number

pith:2NTQW3FK

pith:2012:2NTQW3FK53I5OXPUUE4PSTPQMP

not attested not anchored not stored refs pending

Periods of Double EPW-sextics

Kieran G. O'Grady

arxiv:1203.6495 v4 · 2012-03-29 · 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{2NTQW3FK53I5OXPUUE4PSTPQMP}

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	2026-05-18T02:47:16.342074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3670b6caaeed1d75df4a138f94df063de86d2f450181e6a0d7b3a10fbf46d5e

Aliases

arxiv: 1203.6495 · arxiv_version: 1203.6495v4 · doi: 10.48550/arxiv.1203.6495 · pith_short_12: 2NTQW3FK53I5 · pith_short_16: 2NTQW3FK53I5OXPU · pith_short_8: 2NTQW3FK

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/2NTQW3FK53I5OXPUUE4PSTPQMP \
  | 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: d3670b6caaeed1d75df4a138f94df063de86d2f450181e6a0d7b3a10fbf46d5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a1a4255de3f2a392c2287224b57fd01fc024282032959964c8d8e23c630b623",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-03-29T12:01:18Z",
    "title_canon_sha256": "22e034aa5d67d4582ee8a2191d8a2251ef3d373b9415ed7d01d8013e52f99746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6495",
    "kind": "arxiv",
    "version": 4
  }
}