Pith Number

pith:QFDPFQGN

pith:2014:QFDPFQGNL6UGIQRN2JDNFAPBEK

not attested not anchored not stored refs pending

Discrepancies between isochrone fitting and gyrochronology for exoplanet host stars?

D. J. A. Brown

arxiv:1406.4402 v1 · 2014-06-17 · 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{QFDPFQGNL6UGIQRN2JDNFAPBEK}

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	2026-05-18T02:49:11.389599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8146f2c0cd5fa864422dd246d281e122a1f2433936fd2ab7b6f58d932892bcc5

Aliases

arxiv: 1406.4402 · arxiv_version: 1406.4402v1 · doi: 10.48550/arxiv.1406.4402 · pith_short_12: QFDPFQGNL6UG · pith_short_16: QFDPFQGNL6UGIQRN · pith_short_8: QFDPFQGN

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/QFDPFQGNL6UGIQRN2JDNFAPBEK \
  | 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: 8146f2c0cd5fa864422dd246d281e122a1f2433936fd2ab7b6f58d932892bcc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09ca44ae0fed36d433286056e46513f61d097fd0a92f21d666061d7500c6b677",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-06-17T15:26:17Z",
    "title_canon_sha256": "4f01808e95ac5c909a1b4195d3c1f99430a9db4fdd86f2a2e20dea8f6068cceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4402",
    "kind": "arxiv",
    "version": 1
  }
}