Pith Number

pith:R52U3VT4

pith:2013:R52U3VT4ST6V64ZGHXCTZWT5EJ

not attested not anchored not stored refs pending

Directed Riemannian manifolds of pointwise constant relative sectional curvature

Georgi Ganchev, Vesselka Mihova

arxiv:1307.0918 v1 · 2013-07-03 · 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{R52U3VT4ST6V64ZGHXCTZWT5EJ}

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	2026-05-18T02:37:44.839479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f754dd67c94fd5f73263dc53cda7d224bb5f3378ca8ae2a2ac3e8c211e30118

Aliases

arxiv: 1307.0918 · arxiv_version: 1307.0918v1 · doi: 10.48550/arxiv.1307.0918 · pith_short_12: R52U3VT4ST6V · pith_short_16: R52U3VT4ST6V64ZG · pith_short_8: R52U3VT4

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/R52U3VT4ST6V64ZGHXCTZWT5EJ \
  | 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: 8f754dd67c94fd5f73263dc53cda7d224bb5f3378ca8ae2a2ac3e8c211e30118

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "906f33100b69a337606fa267766796066587be436360cb32b5a798d76b5a0c62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-07-03T06:16:44Z",
    "title_canon_sha256": "d4e9c9a1ecc6a9f07e924130deb96b10f7f4b474f7c1f9325234125856d60654"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0918",
    "kind": "arxiv",
    "version": 1
  }
}