Pith Number

pith:CPH4FNGI

pith:2014:CPH4FNGI4VDAAMRAH7F3J5KZ2K

not attested not anchored not stored refs pending

K2 observations of the pulsating subdwarf B star EQ Piscium: an sdB+dM binary

C. S. Jeffery, Gavin Ramsay (Armagh Observatory)

arxiv:1404.7470 v1 · 2014-04-29 · 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{CPH4FNGI4VDAAMRAH7F3J5KZ2K}

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	2026-05-18T01:43:21.815608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13cfc2b4c8e5460032203fcbb4f559d2b8fe2987487f6d34dc1e3296997b8c50

Aliases

arxiv: 1404.7470 · arxiv_version: 1404.7470v1 · doi: 10.48550/arxiv.1404.7470 · pith_short_12: CPH4FNGI4VDA · pith_short_16: CPH4FNGI4VDAAMRA · pith_short_8: CPH4FNGI

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/CPH4FNGI4VDAAMRAH7F3J5KZ2K \
  | 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: 13cfc2b4c8e5460032203fcbb4f559d2b8fe2987487f6d34dc1e3296997b8c50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b31cae9c05b341e280be47c727c40b6415c9359096dffe62a9ec7d0519bf3bf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-04-29T19:25:18Z",
    "title_canon_sha256": "2cfa5f2adeda770972690c3b5de9b99cd404e775425146f53478a5f9c1b461dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7470",
    "kind": "arxiv",
    "version": 1
  }
}