Pith Number

pith:HGQBFK2F

pith:2019:HGQBFK2FKJRXUAAO5322DZLNJC

not attested not anchored not stored refs pending

Curves in a spacelike hypersurface in the Minkowski space-time

Ana Claudia Nabarro, Andrea de Jesus Sacramento, Shyuichi Izumiya

arxiv:1907.01876 v1 · 2019-07-03 · 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{HGQBFK2FKJRXUAAO5322DZLNJC}

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	2026-05-17T23:41:34.705553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39a012ab4552637a000eeef5a1e56d48b30852aecd79faf098337cd9984c37b7

Aliases

arxiv: 1907.01876 · arxiv_version: 1907.01876v1 · doi: 10.48550/arxiv.1907.01876 · pith_short_12: HGQBFK2FKJRX · pith_short_16: HGQBFK2FKJRXUAAO · pith_short_8: HGQBFK2F

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/HGQBFK2FKJRXUAAO5322DZLNJC \
  | 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: 39a012ab4552637a000eeef5a1e56d48b30852aecd79faf098337cd9984c37b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4df5f7cb328f4fce474838de06b31e582bc505dbdd7a51899dbebc5a2bdb1a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-07-03T12:15:03Z",
    "title_canon_sha256": "fa346e89fcfe05ba02fd37181716fc17f5de58e624665993a62e15429d0ec65d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01876",
    "kind": "arxiv",
    "version": 1
  }
}