Pith Number

pith:4KUR4PMS

pith:2011:4KUR4PMSMAUBN7C74X767XIDCG

not attested not anchored not stored refs pending

The VLBA Calibrator Search for the BeSSeL Survey

A. Bartkiewicz, A. Brunthaler, A. Sanna, B. Zhang, K. Immer, K. M. Menten, L. Moscadelli, M. J. Reid, X. W. Zheng, Y. K. Choi, Y. W. Wu, Y. Xu

arxiv:1103.5438 v1 · 2011-03-28 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4KUR4PMSMAUBN7C74X767XIDCG}

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	2026-05-18T02:02:44.013996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a91e3d92602816fc5fe5ffefdd03119f709e992555d784673ff5c6b6a07011

Aliases

arxiv: 1103.5438 · arxiv_version: 1103.5438v1 · doi: 10.48550/arxiv.1103.5438 · pith_short_12: 4KUR4PMSMAUB · pith_short_16: 4KUR4PMSMAUBN7C7 · pith_short_8: 4KUR4PMS

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/4KUR4PMSMAUBN7C74X767XIDCG \
  | 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: e2a91e3d92602816fc5fe5ffefdd03119f709e992555d784673ff5c6b6a07011

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5322e8164a6e8981c2ed2a2bcf0e210576bc561358fc520cfd5b1fa7f391df5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-03-28T18:30:02Z",
    "title_canon_sha256": "96ef00a07480ca245af9eab89d04235811c79ca9f07dd29cd2fe2385322e3023"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5438",
    "kind": "arxiv",
    "version": 1
  }
}