Pith Number

pith:F6QN6GPG

pith:2009:F6QN6GPGNWGOXUG5XBEBQHAOFK

not attested not anchored not stored refs pending

Lyman alpha absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment

Geraint F. Lewis, Madhura Killedar

arxiv:0910.4580 v1 · 2009-10-23 · 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{F6QN6GPGNWGOXUG5XBEBQHAOFK}

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

Direct detection of the cosmic expansion: the redshift drift and the flux drift

Receipt and verification

First computed	2026-05-18T02:11:12.037282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fa0df19e66d8cebd0ddb848181c0e2ab125876618eb7ffd785904fd586d642c

Aliases

arxiv: 0910.4580 · arxiv_version: 0910.4580v1 · doi: 10.48550/arxiv.0910.4580 · pith_short_12: F6QN6GPGNWGO · pith_short_16: F6QN6GPGNWGOXUG5 · pith_short_8: F6QN6GPG

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/F6QN6GPGNWGOXUG5XBEBQHAOFK \
  | 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: 2fa0df19e66d8cebd0ddb848181c0e2ab125876618eb7ffd785904fd586d642c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5331eb8090719fcd3a4ea84d297e87ff5cf9fd3ca2f93432b288fc9c7636e965",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-23T20:00:22Z",
    "title_canon_sha256": "00702f62df652fcbea04e0c82cba1c1011db659a9a86e9b2ba3f5995e0dd657f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4580",
    "kind": "arxiv",
    "version": 1
  }
}