Pith Number

pith:B4BQBJRH

pith:2011:B4BQBJRHHFVYD4DLFO5XBO3BK7

not attested not anchored not stored refs pending

The BHB stars in the Survey Fields of Rodgers et al. (1993): New Observations and Comparisons with other Recent Surveys

(2) Smithsonian Astrophysical Observatory), T. D. Kinman (1), Warren R. Brown (2) ((1) NOAO

arxiv:1103.1375 v1 · 2011-03-07 · astro-ph.GA · 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{B4BQBJRHHFVYD4DLFO5XBO3BK7}

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	2026-05-18T02:02:58.649421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f0300a627396b81f06b2bbb70bb6157e0286995981365731a27d93c0f40e3e1

Aliases

arxiv: 1103.1375 · arxiv_version: 1103.1375v1 · doi: 10.48550/arxiv.1103.1375 · pith_short_12: B4BQBJRHHFVY · pith_short_16: B4BQBJRHHFVYD4DL · pith_short_8: B4BQBJRH

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/B4BQBJRHHFVYD4DLFO5XBO3BK7 \
  | 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: 0f0300a627396b81f06b2bbb70bb6157e0286995981365731a27d93c0f40e3e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a59e2b181a27ccd93b3d0d7018793bc2af1893e989b007417a02425bcdfd9e9b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-03-07T20:58:08Z",
    "title_canon_sha256": "1fe4c9825a1cf5688b756f068f2a849864b6371ff4199bff6a31c12304fb6872"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1375",
    "kind": "arxiv",
    "version": 1
  }
}