Pith Number

pith:HDUT5TSM

pith:2005:HDUT5TSMANNTTUFCHNHF4AA54Y

not attested not anchored not stored refs pending

Induced two-photon decay of the 2s level and the rate of cosmological hydrogen recombination

J.Chluba, R.A.Sunyaev

arxiv:astro-ph/0508144 v3 · 2005-08-04 · astro-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{HDUT5TSMANNTTUFCHNHF4AA54Y}

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

Planck 2018 results. VI. Cosmological parameters

Receipt and verification

First computed	2026-07-04T17:14:58.846167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38e93ece4c035b39d0a23b4e5e001de63eba3a905ce01b37dd24e0668a5e7db0

Aliases

arxiv: astro-ph/0508144 · arxiv_version: astro-ph/0508144v3 · doi: 10.48550/arxiv.astro-ph/0508144 · pith_short_12: HDUT5TSMANNT · pith_short_16: HDUT5TSMANNTTUFC · pith_short_8: HDUT5TSM

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/HDUT5TSMANNTTUFCHNHF4AA54Y \
  | 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: 38e93ece4c035b39d0a23b4e5e001de63eba3a905ce01b37dd24e0668a5e7db0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e8b4e39ec97fd96135b4a079162d19eb5946fa4e7462963ee59a10ea0b88b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-08-04T20:08:18Z",
    "title_canon_sha256": "f160a9797435bee13150674a57dc1878ddecd958a60901a453f61b199e95b013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0508144",
    "kind": "arxiv",
    "version": 3
  }
}