Pith Number

pith:53MHK3MV

pith:2017:53MHK3MV22PVJCAZUMRWUPP7EX

not attested not anchored not stored refs pending

Strong HI Lyman-$\alpha$ variations from the 11 Gyr-old host star Kepler-444: a planetary origin ?

A. Gracia-Berna, A. Wyttenbach, C. Lovis, D. Ehrenreich, F. Pepe, N. Astudillo-Defru, N. Thomas, R. Allart, S. Udry, T. Semaan, V. Bourrier

arxiv:1703.00504 v2 · 2017-03-01 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{53MHK3MV22PVJCAZUMRWUPP7EX}

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	2026-05-18T00:41:24.680072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eed8756d95d69f548819a3236a3dff25cc76b6e3e9d5daf9698339bde0cdd81b

Aliases

arxiv: 1703.00504 · arxiv_version: 1703.00504v2 · doi: 10.48550/arxiv.1703.00504 · pith_short_12: 53MHK3MV22PV · pith_short_16: 53MHK3MV22PVJCAZ · pith_short_8: 53MHK3MV

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/53MHK3MV22PVJCAZUMRWUPP7EX \
  | 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: eed8756d95d69f548819a3236a3dff25cc76b6e3e9d5daf9698339bde0cdd81b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c48c921185f949fa326cc58db3a70c1d0dd9999951aa327a5441ae1bcc9c7e38",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-03-01T21:05:44Z",
    "title_canon_sha256": "748a453aa3a05195e1ed5c5c303e0e7a98b2f11d717d21e63121b41a230e064a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00504",
    "kind": "arxiv",
    "version": 2
  }
}