Pith Number

pith:PBDIKXR2

pith:2014:PBDIKXR2D5HSEJOA6WHXKQZUQK

not attested not anchored not stored refs pending

Exploiting the open clusters in the Kepler and CoRoT fields

Eric Sandquist, Frank Grundahl, Jens Jessen-Hansen, Karsten Brogaard, Soeren Frandsen

arxiv:1409.2271 v1 · 2014-09-08 · 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{PBDIKXR2D5HSEJOA6WHXKQZUQK}

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	2026-05-18T01:42:06.882213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7846855e3a1f4f2225c0f58f7543348292ddc9c98432ca16dcf87905760baa73

Aliases

arxiv: 1409.2271 · arxiv_version: 1409.2271v1 · doi: 10.48550/arxiv.1409.2271 · pith_short_12: PBDIKXR2D5HS · pith_short_16: PBDIKXR2D5HSEJOA · pith_short_8: PBDIKXR2

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/PBDIKXR2D5HSEJOA6WHXKQZUQK \
  | 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: 7846855e3a1f4f2225c0f58f7543348292ddc9c98432ca16dcf87905760baa73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6fb566f03a7141c87c18ce3efe3271858cbd3e97277496ee0d3e374232ba394",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-09-08T10:38:08Z",
    "title_canon_sha256": "63dd3d2a63361692fccc2922998726905f6bea21d894b1d1a7ef556e5a3c5608"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2271",
    "kind": "arxiv",
    "version": 1
  }
}