Pith Number

pith:YUMRTA44

pith:2005:YUMRTA44EJIQ7RY7RLPESJK5SH

not attested not anchored not stored refs pending

A Measure of Cosmological Acceleration

N. C. Tsamis (University of Crete), R. P. Woodard (University of Florida)

arxiv:gr-qc/0506089 v1 · 2005-06-16 · gr-qc · astro-ph · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YUMRTA44EJIQ7RY7RLPESJK5SH}

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	2026-05-18T04:37:00.894192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c51919839c22510fc71f8ade49255d91f2e41a8506d36c912929ec6e8ecebee9

Aliases

arxiv: gr-qc/0506089 · arxiv_version: gr-qc/0506089v1 · doi: 10.48550/arxiv.gr-qc/0506089 · pith_short_12: YUMRTA44EJIQ · pith_short_16: YUMRTA44EJIQ7RY7 · pith_short_8: YUMRTA44

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/YUMRTA44EJIQ7RY7RLPESJK5SH \
  | 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: c51919839c22510fc71f8ade49255d91f2e41a8506d36c912929ec6e8ecebee9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f4d5d8fa1a2710c440cc98735e9788e619ee2ff0f20c0138560d42a5fbfa90c",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-06-16T14:53:01Z",
    "title_canon_sha256": "c865138c89b7256a68c8c9e314e1b469591a0a01b7249780b146f7f607f5c7a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0506089",
    "kind": "arxiv",
    "version": 1
  }
}