Pith Number

pith:ZB64FGSS

pith:2016:ZB64FGSS7KS2IY3O3UVV6UWX44

not attested not anchored not stored refs pending

Living with a Red Dwarf: Rotation and X-ray and Ultraviolet Properties of the Halo Population Kapteyn's Star

Allyn Durbin, Edward F. Guinan, Scott G. Engle

arxiv:1602.01912 v1 · 2016-02-05 · astro-ph.SR · astro-ph.EP · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZB64FGSS7KS2IY3O3UVV6UWX44}

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	2026-05-18T01:16:14.281606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c87dc29a52faa5a4636edd2b5f52d7e7263b65159242dd415536ccb6c156a017

Aliases

arxiv: 1602.01912 · arxiv_version: 1602.01912v1 · doi: 10.48550/arxiv.1602.01912 · pith_short_12: ZB64FGSS7KS2 · pith_short_16: ZB64FGSS7KS2IY3O · pith_short_8: ZB64FGSS

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/ZB64FGSS7KS2IY3O3UVV6UWX44 \
  | 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: c87dc29a52faa5a4636edd2b5f52d7e7263b65159242dd415536ccb6c156a017

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec6341150c18c5b46a68942ebf99a765004c243a3544967315504927669aa866",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-02-05T02:49:51Z",
    "title_canon_sha256": "05215d022fc440246f36d276d3effbcbf52c83d15cc2234fcfd450eec7c45477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01912",
    "kind": "arxiv",
    "version": 1
  }
}