Pith Number

pith:NKP4MXOK

pith:2012:NKP4MXOK6YTTG7URSPU66NKY2E

not attested not anchored not stored refs pending

On prolongations of second-order regular overdetermined systems with two independent and one dependent variables

Takahiro Noda

arxiv:1210.5112 v1 · 2012-10-18 · 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{NKP4MXOK6YTTG7URSPU66NKY2E}

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	2026-05-18T03:42:53.834478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a9fc65dcaf627337e9193e9ef3558d113e1c4f057173600eedc870a4b16f8ac

Aliases

arxiv: 1210.5112 · arxiv_version: 1210.5112v1 · doi: 10.48550/arxiv.1210.5112 · pith_short_12: NKP4MXOK6YTT · pith_short_16: NKP4MXOK6YTTG7UR · pith_short_8: NKP4MXOK

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/NKP4MXOK6YTTG7URSPU66NKY2E \
  | 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: 6a9fc65dcaf627337e9193e9ef3558d113e1c4f057173600eedc870a4b16f8ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "491063a8aa1aaf55cfd226ecc5cf87ad7199aff6c6be5a2f8940f62d8d9fd859",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-10-18T12:35:28Z",
    "title_canon_sha256": "00e50ed917de0afc9ab2d45ed9ccca16f652dc9b22436c8b97599f15298adcd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5112",
    "kind": "arxiv",
    "version": 1
  }
}