Pith Number

pith:QNYWSL7M

pith:2014:QNYWSL7M6HBP7NHP6QANTJTYBZ

not attested not anchored not stored refs pending

The lightlike geometry of marginally trapped surfaces in Minkowski space-time

Atsufumi Honda, Shyuichi Izumiya

arxiv:1412.0169 v1 · 2014-11-30 · 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{QNYWSL7M6HBP7NHP6QANTJTYBZ}

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	2026-05-18T02:32:30.175713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8371692fecf1c2ffb4eff400d9a6780e60eca2d7f9baba73fa8b0a86cb2e214c

Aliases

arxiv: 1412.0169 · arxiv_version: 1412.0169v1 · doi: 10.48550/arxiv.1412.0169 · pith_short_12: QNYWSL7M6HBP · pith_short_16: QNYWSL7M6HBP7NHP · pith_short_8: QNYWSL7M

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/QNYWSL7M6HBP7NHP6QANTJTYBZ \
  | 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: 8371692fecf1c2ffb4eff400d9a6780e60eca2d7f9baba73fa8b0a86cb2e214c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0bf0b72bd2e959e3332e0cfacc1978834f6dbc0ab3bf1bf296579021e9ed3ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-11-30T01:09:03Z",
    "title_canon_sha256": "06f7077c58309c5033e994679521e2d7ab145160cf08ab58091d1ecec79c32d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0169",
    "kind": "arxiv",
    "version": 1
  }
}