Pith Number

pith:GA3B2VFY

pith:2016:GA3B2VFY4ZM3GZ3G3XRNGK5CDH

not attested not anchored not stored refs pending

The Age of the Directly-Imaged Planet Host Star $\kappa$ Andromedae Determined From Interferometric Observations

E. K. Baines, G. Schaefer, Jeremy Jones, M. Ireland, R. J. White, S. Quinn, T. Boyajian

arxiv:1604.02176 v1 · 2016-04-07 · 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{GA3B2VFY4ZM3GZ3G3XRNGK5CDH}

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	2026-05-18T01:16:12.979011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30361d54b8e659b36766dde2d32ba219d39e1dafb4d0516da2bb5b85c5603747

Aliases

arxiv: 1604.02176 · arxiv_version: 1604.02176v1 · doi: 10.48550/arxiv.1604.02176 · pith_short_12: GA3B2VFY4ZM3 · pith_short_16: GA3B2VFY4ZM3GZ3G · pith_short_8: GA3B2VFY

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/GA3B2VFY4ZM3GZ3G3XRNGK5CDH \
  | 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: 30361d54b8e659b36766dde2d32ba219d39e1dafb4d0516da2bb5b85c5603747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b690cf66fa25b90819ab609f3b901270425505d6361d3c8fe5ff4accdea49c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-04-07T21:00:05Z",
    "title_canon_sha256": "1e3df77b2f9702ee8d7419cbf3e81061bc5277527135c15765a77e74112038c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02176",
    "kind": "arxiv",
    "version": 1
  }
}