Pith Number

pith:Q4TRKGB7

pith:2009:Q4TRKGB7HT4OF2UWZSVN27KTLF

not attested not anchored not stored refs pending

Conformal proper times according to the Woodhouse causal axiomatics of relativistic spacetimes

Jacques L. Rubin

arxiv:0906.2822 v1 · 2009-06-15 · 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{Q4TRKGB7HT4OF2UWZSVN27KTLF}

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	2026-05-18T02:34:45.656620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

872715183f3cf8e2ea96ccaadd7d53597cd23f183cef050cec237bf767cb1bbd

Aliases

arxiv: 0906.2822 · arxiv_version: 0906.2822v1 · doi: 10.48550/arxiv.0906.2822 · pith_short_12: Q4TRKGB7HT4O · pith_short_16: Q4TRKGB7HT4OF2UW · pith_short_8: Q4TRKGB7

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/Q4TRKGB7HT4OF2UWZSVN27KTLF \
  | 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: 872715183f3cf8e2ea96ccaadd7d53597cd23f183cef050cec237bf767cb1bbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de1685ff4a7fa1c32bcd9cb66c0aef255c3d8e89345d0beb53e46e7c55bd984c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-06-15T23:37:28Z",
    "title_canon_sha256": "48667c5331c82bf29a2647aea6300f17bba885f5c67416fbc4757e5f88694b8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2822",
    "kind": "arxiv",
    "version": 1
  }
}