Pith Number

pith:4XABNUX4

pith:2015:4XABNUX4RCEJU6PPZ6U72UUDDT

not attested not anchored not stored refs pending

New OB star candidates in the Carina Arm around Westerlund 2 from VPHAS+

G. Barentsen, J. E. Drew, J. Eisl\"offel, J. S. Vink, M. Mohr-Smith, N. J. Wright, P. Groot, Q. A. Parker, R. L. M. Corradi, R. Napiwotzki, R. Raddi, R. Wesson, S. E. Sale, V. Kalari, Y. C. Unruh

arxiv:1504.04342 v1 · 2015-04-16 · 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{4XABNUX4RCEJU6PPZ6U72UUDDT}

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	2026-05-18T01:46:15.022533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5c016d2fc88889a79efcfa9fd52831cf582a42bd9f129d7cce5975e4a9cd2c9

Aliases

arxiv: 1504.04342 · arxiv_version: 1504.04342v1 · doi: 10.48550/arxiv.1504.04342 · pith_short_12: 4XABNUX4RCEJ · pith_short_16: 4XABNUX4RCEJU6PP · pith_short_8: 4XABNUX4

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/4XABNUX4RCEJU6PPZ6U72UUDDT \
  | 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: e5c016d2fc88889a79efcfa9fd52831cf582a42bd9f129d7cce5975e4a9cd2c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8251fb4675abad033f594d079b64ecbdfda1f753c90a0aa0c20b209c2055d669",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-16T19:08:36Z",
    "title_canon_sha256": "e610c2a3478464593a8269ed83924218410b74bacee3f3f77be211456433aab9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04342",
    "kind": "arxiv",
    "version": 1
  }
}