Pith Number

pith:PFS4BWND

pith:2014:PFS4BWNDVV7QLVOBHLDQC72XDV

not attested not anchored not stored refs pending

Contact Isotropic Realisations of Jacobi Manifolds via Spencer Operators

Daniele Sepe, Maria Amelia Salazar

arxiv:1406.2138 v4 · 2014-06-09 · math.SG · math.DG · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFS4BWNDVV7QLVOBHLDQC72XDV}

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	2026-05-18T00:43:43.900875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7965c0d9a3ad7f05d5c13ac7017f571d78acaca45eac648eb05e75afe07bb3c7

Aliases

arxiv: 1406.2138 · arxiv_version: 1406.2138v4 · doi: 10.48550/arxiv.1406.2138 · pith_short_12: PFS4BWNDVV7Q · pith_short_16: PFS4BWNDVV7QLVOB · pith_short_8: PFS4BWND

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/PFS4BWNDVV7QLVOBHLDQC72XDV \
  | 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: 7965c0d9a3ad7f05d5c13ac7017f571d78acaca45eac648eb05e75afe07bb3c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "847b086150c74f85ba41c72b3f99ab3b643c9300bd4b85bbe55c0aaf3617be2e",
    "cross_cats_sorted": [
      "math.DG",
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2014-06-09T10:57:55Z",
    "title_canon_sha256": "ac53b18933325726d049cf4938a868d367e40e3bb544d57adc02d8d71864a457"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2138",
    "kind": "arxiv",
    "version": 4
  }
}