Pith Number

pith:WMST3L5B

pith:2012:WMST3L5BEO3NKPU2BZ7TEO2HC5

not attested not anchored not stored refs pending

Einstein Hermitian Metrics of Non Negative Sectional Curvature

Ezio Costa

arxiv:1202.0034 v1 · 2012-01-31 · 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{WMST3L5BEO3NKPU2BZ7TEO2HC5}

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	2026-05-18T04:03:20.672870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3253dafa123b6d53e9a0e7f323b4717765475ad6a20a8a62b67ae4a6a426eb1

Aliases

arxiv: 1202.0034 · arxiv_version: 1202.0034v1 · doi: 10.48550/arxiv.1202.0034 · pith_short_12: WMST3L5BEO3N · pith_short_16: WMST3L5BEO3NKPU2 · pith_short_8: WMST3L5B

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/WMST3L5BEO3NKPU2BZ7TEO2HC5 \
  | 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: b3253dafa123b6d53e9a0e7f323b4717765475ad6a20a8a62b67ae4a6a426eb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d081065462948cd6a09efd50ae34d4f6cbcd2505a52d1e4b7eba3a7b124d015",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-01-31T21:30:38Z",
    "title_canon_sha256": "e35ea8512db038e13993b028d1f36da033d9f5d5cb6bd0f900e80b0ad1141ca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0034",
    "kind": "arxiv",
    "version": 1
  }
}