Pith Number

pith:7OPQ2PJY

pith:2016:7OPQ2PJYQW5OZM26R5RIEUAV7S

not attested not anchored not stored refs pending

Dicke's Superradiance in Astrophysics. II -- The OH 1612 MHz Line

Fereshteh Rajabi, Martin Houde

arxiv:1601.01718 v2 · 2016-01-05 · astro-ph.SR · astro-ph.GA · quant-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{7OPQ2PJYQW5OZM26R5RIEUAV7S}

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	2026-05-18T01:05:44.185622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9f0d3d3885baecb35e8f62825015fcb453176f79bf6b65ff084e82b2c9a453

Aliases

arxiv: 1601.01718 · arxiv_version: 1601.01718v2 · doi: 10.48550/arxiv.1601.01718 · pith_short_12: 7OPQ2PJYQW5O · pith_short_16: 7OPQ2PJYQW5OZM26 · pith_short_8: 7OPQ2PJY

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/7OPQ2PJYQW5OZM26R5RIEUAV7S \
  | 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: fb9f0d3d3885baecb35e8f62825015fcb453176f79bf6b65ff084e82b2c9a453

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecadd6bf736362e66b10e61ce73189cd25e21da3a1248967a57100e3a945eff6",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-01-05T21:39:33Z",
    "title_canon_sha256": "8132e136697517eeb0974d3b8bd2f5d015689fc68df8768c7d560cf4acd3567b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.01718",
    "kind": "arxiv",
    "version": 2
  }
}