Pith Number

pith:RYU72RG5

pith:2013:RYU72RG5IJ5AFKIAZU7PNR7MPM

not attested not anchored not stored refs pending

Measurement of the expansion rate of the Universe from \gamma-ray attenuation

A. Dom\'inguez (UC Riverside), F. Prada (UAM-CSIC, IAA-CSIC)

arxiv:1305.2163 v2 · 2013-05-09 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RYU72RG5IJ5AFKIAZU7PNR7MPM}

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.

Cited by

1 paper in Pith

In the Realm of the Hubble tension $-$ a Review of Solutions

Receipt and verification

First computed	2026-07-04T23:57:44.398995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e29fd44dd427a02a900cd3ef6c7ec7b2f915a2938508b998a35e1dfad436510

Aliases

arxiv: 1305.2163 · arxiv_version: 1305.2163v2 · doi: 10.48550/arxiv.1305.2163 · pith_short_12: RYU72RG5IJ5A · pith_short_16: RYU72RG5IJ5AFKIA · pith_short_8: RYU72RG5

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/RYU72RG5IJ5AFKIAZU7PNR7MPM \
  | 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: 8e29fd44dd427a02a900cd3ef6c7ec7b2f915a2938508b998a35e1dfad436510

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a125bad84fe41c8e42533e97a1c4be868ef4972366d0cbaa0ae845f8a7dce0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-09T17:59:32Z",
    "title_canon_sha256": "8261b5f0995e727c73cbb950382a0cf8f139466eb95438f7982280c0a2730e1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2163",
    "kind": "arxiv",
    "version": 2
  }
}