Pith Number

pith:O2MDZVCV

pith:2012:O2MDZVCVAWON63ZSWYYI4EGEY6

not attested not anchored not stored refs pending

Natural connections with torsion expressed by the metric tensors on almost contact manifolds with B-metric

Mancho Manev, Miroslava Ivanova

arxiv:1203.0926 v1 · 2012-03-05 · 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{O2MDZVCVAWON63ZSWYYI4EGEY6}

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	2026-05-18T03:55:13.840167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76983cd455059cdf6f32b6308e10c4c7bd9d58861be30e6211911354c8f828e6

Aliases

arxiv: 1203.0926 · arxiv_version: 1203.0926v1 · doi: 10.48550/arxiv.1203.0926 · pith_short_12: O2MDZVCVAWON · pith_short_16: O2MDZVCVAWON63ZS · pith_short_8: O2MDZVCV

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/O2MDZVCVAWON63ZSWYYI4EGEY6 \
  | 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: 76983cd455059cdf6f32b6308e10c4c7bd9d58861be30e6211911354c8f828e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9527ee86bdf41272636eba9e0a2f243964910442d43ade0599fcf12d336a2425",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-03-05T14:22:23Z",
    "title_canon_sha256": "d9379bbacedb16d037a823db0491a3406806c5e0d19715a3c85f30b1ab9d8bb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0926",
    "kind": "arxiv",
    "version": 1
  }
}