Pith Number

pith:N2YMJHKM

pith:2015:N2YMJHKMIIFLZ5PW5BI575237V

not attested not anchored not stored refs pending

Projective classification of jets of surfaces in 3-space

Hiroaki Sano, Jorge Luiz Deolindo Silva, Toru Ohmoto, Yutaro Kabata

arxiv:1504.06499 v3 · 2015-04-24 · math.DG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N2YMJHKMIIFLZ5PW5BI575237V}

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	2026-05-18T01:03:53.201490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eb0c49d4c420abcf5f6e851dff75bfd41488fcfabf5a0be6901e3d1c2e80133

Aliases

arxiv: 1504.06499 · arxiv_version: 1504.06499v3 · doi: 10.48550/arxiv.1504.06499 · pith_short_12: N2YMJHKMIIFL · pith_short_16: N2YMJHKMIIFLZ5PW · pith_short_8: N2YMJHKM

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/N2YMJHKMIIFLZ5PW5BI575237V \
  | 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: 6eb0c49d4c420abcf5f6e851dff75bfd41488fcfabf5a0be6901e3d1c2e80133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "770c92548ba3abd125efe3a6f35358bcae4ef2b6f7346f618787ee54b3f8fe3d",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-04-24T13:33:10Z",
    "title_canon_sha256": "319935d6768c8527cf60ab4105bad9a76a4646e248864660f3d9ae1295a4f438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06499",
    "kind": "arxiv",
    "version": 3
  }
}