Pith Number

pith:MGVRNFSI

pith:2013:MGVRNFSI7EUUA3V3YUG3EZP3UI

not attested not anchored not stored refs pending

Hyperbolicity of Hamiltonian formulations in General Relativity

David Hilditch, Ronny Richter

arxiv:1303.4433 v1 · 2013-03-18 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MGVRNFSI7EUUA3V3YUG3EZP3UI}

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	2026-05-18T03:30:27.249775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61ab169648f929406ebbc50db265fba2197204ce3bb2703177c51dae14abf9d5

Aliases

arxiv: 1303.4433 · arxiv_version: 1303.4433v1 · doi: 10.48550/arxiv.1303.4433 · pith_short_12: MGVRNFSI7EUU · pith_short_16: MGVRNFSI7EUUA3V3 · pith_short_8: MGVRNFSI

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/MGVRNFSI7EUUA3V3YUG3EZP3UI \
  | 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: 61ab169648f929406ebbc50db265fba2197204ce3bb2703177c51dae14abf9d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06f98ecaffdfaf030f22bc590f46b5faa4c931722f3ec025fd2a54088f423dc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-03-18T21:41:52Z",
    "title_canon_sha256": "0acb97a998f6e23c925342a2c6ab16530c17794366a0cd1682e92c583e585e04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4433",
    "kind": "arxiv",
    "version": 1
  }
}