Pith Number

pith:HFKMZ7XX

pith:2019:HFKMZ7XXTJSJB5TRSWRN6N4VIL

not attested not anchored not stored refs pending

Complexity of the Bondi metric

A. Di Prisco, J. Carot, L. Herrera

arxiv:1906.08640 v1 · 2019-06-19 · 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{HFKMZ7XXTJSJB5TRSWRN6N4VIL}

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	2026-05-17T23:40:29.989830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3954ccfef79a6490f67195a2df379542c44f505b4d28c97c09c5d944bb913666

Aliases

arxiv: 1906.08640 · arxiv_version: 1906.08640v1 · doi: 10.48550/arxiv.1906.08640 · pith_short_12: HFKMZ7XXTJSJ · pith_short_16: HFKMZ7XXTJSJB5TR · pith_short_8: HFKMZ7XX

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/HFKMZ7XXTJSJB5TRSWRN6N4VIL \
  | 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: 3954ccfef79a6490f67195a2df379542c44f505b4d28c97c09c5d944bb913666

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13c8915d5b9d82f16317749c5d98df0990dfa6e324b3f18e135af36b8c148682",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-06-19T08:19:47Z",
    "title_canon_sha256": "607cfe2342c0aa692d7ffb1869bd273ece837f70c77142c56a522cfaa3fc6611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08640",
    "kind": "arxiv",
    "version": 1
  }
}