Pith Number

pith:WBYBKMJF

pith:2016:WBYBKMJF3V2WPZFL2QDHU2M6SM

not attested not anchored not stored refs pending

About Exobiology: The Case for Dwarf K Stars

E. F. Guinan, M. Cuntz

arxiv:1606.09580 v1 · 2016-06-30 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WBYBKMJF3V2WPZFL2QDHU2M6SM}

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	2026-05-18T01:08:38.435386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b070153125dd7567e4abd4067a699e9326026cb5340468f255def71deacfe306

Aliases

arxiv: 1606.09580 · arxiv_version: 1606.09580v1 · doi: 10.48550/arxiv.1606.09580 · pith_short_12: WBYBKMJF3V2W · pith_short_16: WBYBKMJF3V2WPZFL · pith_short_8: WBYBKMJF

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/WBYBKMJF3V2WPZFL2QDHU2M6SM \
  | 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: b070153125dd7567e4abd4067a699e9326026cb5340468f255def71deacfe306

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6400cc1051ac7a0876b0174bad633185013a8d9e345b8b4ae90fb83b1a24a498",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-06-30T17:21:36Z",
    "title_canon_sha256": "acd2afe5546d9964449c820294ace618b2ba75e0b997777e262919dd05a585b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.09580",
    "kind": "arxiv",
    "version": 1
  }
}