Pith. sign in
Pith Number

pith:MUAUJ2D6

pith:2001:MUAUJ2D6LMGIKXYNCV3BBPDQGX
not attested not anchored not stored refs pending

Constraining Cosmological Parameters Based on Relative Galaxy Ages

Abraham Loeb (Harvard), Raul Jimenez (Rutgers)

arxiv:astro-ph/0106145 v1 · 2001-06-07 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{MUAUJ2D6LMGIKXYNCV3BBPDQGX}

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

18 papers in Pith

Receipt and verification
First computed 2026-07-04T16:23:30.603052Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

650144e87e5b0c855f0d157610bc7035f3b573db563b02c69fd3b60bc7717b7d

Aliases

arxiv: astro-ph/0106145 · arxiv_version: astro-ph/0106145v1 · doi: 10.48550/arxiv.astro-ph/0106145 · pith_short_12: MUAUJ2D6LMGI · pith_short_16: MUAUJ2D6LMGIKXYN · pith_short_8: MUAUJ2D6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/MUAUJ2D6LMGIKXYNCV3BBPDQGX \
  | 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: 650144e87e5b0c855f0d157610bc7035f3b573db563b02c69fd3b60bc7717b7d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "b33a12540d3470ed436e58015fe7ac21af37d06106dfb301d2411db13cb23976",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-06-07T23:31:44Z",
    "title_canon_sha256": "5193f8e1752fc835abeb2980059c92c9133bb63c5b69d37d76ad0b1c0bd4f0b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0106145",
    "kind": "arxiv",
    "version": 1
  }
}