Pith Number

pith:WGQKWM4W

pith:2010:WGQKWM4WJU5HLAUPOC3PCLPXSL

not attested not anchored not stored refs pending

Natural connection with totally skew-symmetric torsion on almost contact manifolds with B-metric

Mancho Manev

arxiv:1001.3800 v3 · 2010-01-21 · 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{WGQKWM4WJU5HLAUPOC3PCLPXSL}

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	2026-05-18T03:55:23.718870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1a0ab33964d3a75828f70b6f12df792c0672d409a0c83ae24b8c8a853dcd7b9

Aliases

arxiv: 1001.3800 · arxiv_version: 1001.3800v3 · doi: 10.48550/arxiv.1001.3800 · pith_short_12: WGQKWM4WJU5H · pith_short_16: WGQKWM4WJU5HLAUP · pith_short_8: WGQKWM4W

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/WGQKWM4WJU5HLAUPOC3PCLPXSL \
  | 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: b1a0ab33964d3a75828f70b6f12df792c0672d409a0c83ae24b8c8a853dcd7b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "691c3082ae6356d90b29247864b8e4c7111d5915b5d5f6c3272010a35afb2fcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-01-21T13:38:51Z",
    "title_canon_sha256": "9a4a96ec7da82730c55fce3c887ec4dab2b4d3d63c5a736a5bef267c07804b13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3800",
    "kind": "arxiv",
    "version": 3
  }
}