Pith Number

pith:BVYET7KS

pith:2018:BVYET7KSAAD44X3WBZFCFEY6AL

not attested not anchored not stored refs pending

An ALMA 3mm continuum census of Westerlund 1

A. Richards, B. W. Ritchie, D. M. Fenech, F. Najarro, H. Andrews, I. Negueruela, J. S. Clark, R. K. Prinja, S. Dougherty

arxiv:1804.04675 v1 · 2018-04-12 · 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{BVYET7KSAAD44X3WBZFCFEY6AL}

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	2026-05-18T00:04:17.415736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d7049fd520007ce5f760e4a22931e02fa50fe3e7aa119033e1e1aaee9a36172

Aliases

arxiv: 1804.04675 · arxiv_version: 1804.04675v1 · doi: 10.48550/arxiv.1804.04675 · pith_short_12: BVYET7KSAAD4 · pith_short_16: BVYET7KSAAD44X3W · pith_short_8: BVYET7KS

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/BVYET7KSAAD44X3WBZFCFEY6AL \
  | 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: 0d7049fd520007ce5f760e4a22931e02fa50fe3e7aa119033e1e1aaee9a36172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d16bad70fe0e4f9449e90490030b43730174a18b4dd500726155f0e451569852",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-12T18:04:20Z",
    "title_canon_sha256": "b0b0391edfb7baee5a0dac198f47497b8bb380f783b7adc0880474bad2686c2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04675",
    "kind": "arxiv",
    "version": 1
  }
}