Pith Number

pith:3N3PHOQT

pith:2013:3N3PHOQTTYMW5BMQNSSMHVSEFE

not attested not anchored not stored refs pending

Singer invariants and strongly curvature homogeneous manifolds of type (1,3)

Corey Dunn, Cullen McDonald

arxiv:1309.1201 v1 · 2013-09-04 · 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{3N3PHOQTTYMW5BMQNSSMHVSEFE}

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	2026-05-18T03:14:07.983583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db76f3ba139e196e85906ca4c3d6442902ce42022d81852f085f5b0be6231fa0

Aliases

arxiv: 1309.1201 · arxiv_version: 1309.1201v1 · doi: 10.48550/arxiv.1309.1201 · pith_short_12: 3N3PHOQTTYMW · pith_short_16: 3N3PHOQTTYMW5BMQ · pith_short_8: 3N3PHOQT

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/3N3PHOQTTYMW5BMQNSSMHVSEFE \
  | 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: db76f3ba139e196e85906ca4c3d6442902ce42022d81852f085f5b0be6231fa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad787b560db4647a3a7d70807882601cd94084ca7a813537ef949cce9f1b2218",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-09-04T22:33:42Z",
    "title_canon_sha256": "14bada4c28ff0d9622d3bd0ad7d6039bc010f910a4b01cfa4d6d23e6355419ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1201",
    "kind": "arxiv",
    "version": 1
  }
}