Pith Number

pith:2ESWBQX7

pith:2015:2ESWBQX7EVZUVKMSNN26NKSIIX

not attested not anchored not stored refs pending

Almost contact B-metric manifolds as extensions of a 2-dimensional space-form

Hristo Manev

arxiv:1506.05712 v1 · 2015-06-18 · 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{2ESWBQX7EVZUVKMSNN26NKSIIX}

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	2026-05-18T01:44:09.902778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d12560c2ff25734aa9926b75e6aa4845ceee4774150d7a44734e8d4ecdc16302

Aliases

arxiv: 1506.05712 · arxiv_version: 1506.05712v1 · doi: 10.48550/arxiv.1506.05712 · pith_short_12: 2ESWBQX7EVZU · pith_short_16: 2ESWBQX7EVZUVKMS · pith_short_8: 2ESWBQX7

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/2ESWBQX7EVZUVKMSNN26NKSIIX \
  | 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: d12560c2ff25734aa9926b75e6aa4845ceee4774150d7a44734e8d4ecdc16302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2357ac7bc3a5d37748ec1910c1685f014c8c8e3dd1da382e5a2903b3df5c8c23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-06-18T15:18:10Z",
    "title_canon_sha256": "3f8d41c2f30f83a80ec2088be32a4b983f26affd7375a34afa2cb90d98b4dfaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05712",
    "kind": "arxiv",
    "version": 1
  }
}