Pith Number

pith:G2UUFDP5

pith:2008:G2UUFDP5RIVSLAWZNGR5P47466

not attested not anchored not stored refs pending

A review of redshift and its interpretation in cosmology and astrophysics

J. Dunning-Davies, R. Gray

arxiv:0806.4085 v2 · 2008-06-25 · physics.gen-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{G2UUFDP5RIVSLAWZNGR5P47466}

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	2026-05-18T04:21:20.654309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36a9428dfd8a2b2582d969a3d7f3fcf7b0c193c29b380053e0b87118df6bac9b

Aliases

arxiv: 0806.4085 · arxiv_version: 0806.4085v2 · doi: 10.48550/arxiv.0806.4085 · pith_short_12: G2UUFDP5RIVS · pith_short_16: G2UUFDP5RIVSLAWZ · pith_short_8: G2UUFDP5

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/G2UUFDP5RIVSLAWZNGR5P47466 \
  | 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: 36a9428dfd8a2b2582d969a3d7f3fcf7b0c193c29b380053e0b87118df6bac9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d139ca000c7b27738951c406f4c6cbd7687df347fddf6e6e950c8cd69c53a20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2008-06-25T12:36:59Z",
    "title_canon_sha256": "120e145eeec3dbd63ab632a3da949e856badc7d6255a2706dd0f25b67bc18358"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4085",
    "kind": "arxiv",
    "version": 2
  }
}