Pith Number

pith:WFXOSXDU

pith:2016:WFXOSXDU5EVT5NBMZGV2YW33TY

not attested not anchored not stored refs pending

The space of hyperk\"ahler metrics on a 4-manifold with boundary

Jason D. Lotay, Joel Fine, Michael Singer

arxiv:1603.08170 v3 · 2016-03-27 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFXOSXDU5EVT5NBMZGV2YW33TY}

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	2026-05-18T00:44:37.154726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b16ee95c74e92b3eb42cc9abac5b7b9e1dea71f508d3f104085abd1e36a8e74d

Aliases

arxiv: 1603.08170 · arxiv_version: 1603.08170v3 · doi: 10.48550/arxiv.1603.08170 · pith_short_12: WFXOSXDU5EVT · pith_short_16: WFXOSXDU5EVT5NBM · pith_short_8: WFXOSXDU

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/WFXOSXDU5EVT5NBMZGV2YW33TY \
  | 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: b16ee95c74e92b3eb42cc9abac5b7b9e1dea71f508d3f104085abd1e36a8e74d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86f6b46c7b1021e82c48d89162ab81aeacd9e30c4ba8fbc973a63bc1b978b995",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-03-27T03:47:12Z",
    "title_canon_sha256": "d2a2d79a0ffbeb83e5133eded917752bc9ffcdcaacecd24ad234259f9663a037"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08170",
    "kind": "arxiv",
    "version": 3
  }
}