Pith Number

pith:7DH3624P

pith:2013:7DH3624PGNF2P6BH4FLX6DJ4LT

not attested not anchored not stored refs pending

Recognizable classification of Lorentzian distance-squared mappings

Shunsuke Ichiki, Takashi Nishimura

arxiv:1306.4553 v3 · 2013-06-19 · 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{7DH3624PGNF2P6BH4FLX6DJ4LT}

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	2026-05-18T01:49:14.800080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8cfbf6b8f334ba7f827e1577f0d3c5ccdf5579f1d04daef25fba5f4a7ce2cb1

Aliases

arxiv: 1306.4553 · arxiv_version: 1306.4553v3 · doi: 10.48550/arxiv.1306.4553 · pith_short_12: 7DH3624PGNF2 · pith_short_16: 7DH3624PGNF2P6BH · pith_short_8: 7DH3624P

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/7DH3624PGNF2P6BH4FLX6DJ4LT \
  | 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: f8cfbf6b8f334ba7f827e1577f0d3c5ccdf5579f1d04daef25fba5f4a7ce2cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04ec426333e4420716f505be16efb386b7da0eb2ec021ccffc1da9c13a73fd77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-06-19T13:58:51Z",
    "title_canon_sha256": "36438d2729777c10d83810a450140875e37d4fc270461eb1fae5f8d1e5d8f13a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4553",
    "kind": "arxiv",
    "version": 3
  }
}