Pith Number

pith:M6ZSBCTL

pith:2012:M6ZSBCTLESGDEGCENB73N3NKBO

not attested not anchored not stored refs pending

Nijenhuis and Compatible Tensors on Lie and Courant algebroids

Joana M. Nunes da Costa, Paulo Antunes

arxiv:1207.1994 v2 · 2012-07-09 · math.DG · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M6ZSBCTLESGDEGCENB73N3NKBO}

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	2026-05-18T01:56:26.697164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67b3208a6b248c321844687fb6edaa0b8225b5bd7cf7b29051b9e8d0ee0ca22c

Aliases

arxiv: 1207.1994 · arxiv_version: 1207.1994v2 · doi: 10.48550/arxiv.1207.1994 · pith_short_12: M6ZSBCTLESGD · pith_short_16: M6ZSBCTLESGDEGCE · pith_short_8: M6ZSBCTL

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/M6ZSBCTLESGDEGCENB73N3NKBO \
  | 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: 67b3208a6b248c321844687fb6edaa0b8225b5bd7cf7b29051b9e8d0ee0ca22c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0fd86dc4f447bd1d3224096af45257cc4fdb01cf21fcc77559321556dff0086",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-07-09T09:11:01Z",
    "title_canon_sha256": "a0a9ca8ec1b8aaa9ef43eb79feec8022549b750ad85abfd60893ff0f5904a09c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1994",
    "kind": "arxiv",
    "version": 2
  }
}