Pith Number

pith:OYMQRGYT

pith:2018:OYMQRGYT6KRGK7TS5UIEQUAFNP

not attested not anchored not stored refs pending

Stringent constraints on fundamental constant evolution using conjugate 18 cm satellite OH lines

(2) Arecibo Observatory, India, Jayaram N. Chengalur (1) ((1) National Centre for Radio Astrophysics, Nissim Kanekar (1), Tapasi Ghosh (2), USA)

arxiv:1801.07688 v1 · 2018-01-23 · astro-ph.CO · gr-qc · hep-ex · physics.atom-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{OYMQRGYT6KRGK7TS5UIEQUAFNP}

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

Colloquium: Radio astronomy with the Arecibo 305-m telescope: In contemporaneous context

Receipt and verification

First computed	2026-05-18T00:21:20.380128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7619089b13f2a2657e72ed104850056bef513b4a72e2b5e3978ee367c2dea41a

Aliases

arxiv: 1801.07688 · arxiv_version: 1801.07688v1 · doi: 10.48550/arxiv.1801.07688 · pith_short_12: OYMQRGYT6KRG · pith_short_16: OYMQRGYT6KRGK7TS · pith_short_8: OYMQRGYT

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/OYMQRGYT6KRGK7TS5UIEQUAFNP \
  | 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: 7619089b13f2a2657e72ed104850056bef513b4a72e2b5e3978ee367c2dea41a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf015f938ec163bf2491cb755362a5c4b4ac976da1961a3b6b4f80c979ff25e1",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ex",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-23T18:19:19Z",
    "title_canon_sha256": "f7f5e4b80309593217ab3296c04340461aedfcde0021a39d8a86b965b3920e97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07688",
    "kind": "arxiv",
    "version": 1
  }
}