Pith Number

pith:TDNQ4QMZ

pith:2016:TDNQ4QMZXZO3FGG6SMEB74ALCH

not attested not anchored not stored refs pending

Lorentzian Darboux images of curves on spacelike surfaces in Lorentz-Minkowski 3-space

Noriaki Ito, Shyuichi Izumiya

arxiv:1601.05175 v1 · 2016-01-20 · 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{TDNQ4QMZXZO3FGG6SMEB74ALCH}

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	2026-05-18T01:15:42.884003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98db0e4199be5db298de93081ff00b11ee02676b0b6e5aee81d5ce6f51418729

Aliases

arxiv: 1601.05175 · arxiv_version: 1601.05175v1 · doi: 10.48550/arxiv.1601.05175 · pith_short_12: TDNQ4QMZXZO3 · pith_short_16: TDNQ4QMZXZO3FGG6 · pith_short_8: TDNQ4QMZ

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/TDNQ4QMZXZO3FGG6SMEB74ALCH \
  | 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: 98db0e4199be5db298de93081ff00b11ee02676b0b6e5aee81d5ce6f51418729

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7602093071808e31b1028433f8647d176b68d6d56e478cfb433ade094f3cb8d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-01-20T05:50:17Z",
    "title_canon_sha256": "b30bb125086a72264214a6ab8b112c3268e05725e1af09dd6dc2460ad312250a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.05175",
    "kind": "arxiv",
    "version": 1
  }
}