Pith Number

pith:P424FDQP

pith:2012:P424FDQPMEVLVSYUTR6KQS7SDY

not attested not anchored not stored refs pending

Calculus and invariants on almost complex manifolds, including projective and conformal geometry

A. Rod Gover, Pawel Nurowski

arxiv:1208.0648 v1 · 2012-08-03 · 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{P424FDQPMEVLVSYUTR6KQS7SDY}

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	2026-05-18T03:49:32.113228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f35c28e0f612abacb149c7ca84bf21e3a45c9c01b0c275e08f1a8de7f175968

Aliases

arxiv: 1208.0648 · arxiv_version: 1208.0648v1 · doi: 10.48550/arxiv.1208.0648 · pith_short_12: P424FDQPMEVL · pith_short_16: P424FDQPMEVLVSYU · pith_short_8: P424FDQP

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/P424FDQPMEVLVSYUTR6KQS7SDY \
  | 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: 7f35c28e0f612abacb149c7ca84bf21e3a45c9c01b0c275e08f1a8de7f175968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9de87e595cc34db74bc77d987b5931db4e5c02d4f4066b5fe6486aae861996b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-08-03T03:22:55Z",
    "title_canon_sha256": "27c8ad8ba90a5c5758ab4233611ef9b2ad60cd8f2dd515d63375665e6badeefe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0648",
    "kind": "arxiv",
    "version": 1
  }
}