Pith Number

pith:HRP4OPSK

pith:2017:HRP4OPSK5Z4I5OP3KF7YFS6FMO

not attested not anchored not stored refs pending

ATLASGAL-selected massive clumps in the inner Galaxy IV. Millimeter hydrogen recombination lines from associated HII regions

F. Wyrowski, J. S. Urquhart, K. M. Menten, T. Csengeri, W.-J. Kim

arxiv:1702.02062 v1 · 2017-02-07 · 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{HRP4OPSK5Z4I5OP3KF7YFS6FMO}

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	2026-05-18T00:42:52.682253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c5fc73e4aee788eb9fb517f82cbc56399cc73b70e7139d2c78d834c46519ea6

Aliases

arxiv: 1702.02062 · arxiv_version: 1702.02062v1 · doi: 10.48550/arxiv.1702.02062 · pith_short_12: HRP4OPSK5Z4I · pith_short_16: HRP4OPSK5Z4I5OP3 · pith_short_8: HRP4OPSK

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/HRP4OPSK5Z4I5OP3KF7YFS6FMO \
  | 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: 3c5fc73e4aee788eb9fb517f82cbc56399cc73b70e7139d2c78d834c46519ea6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "192c4036277d58c3faf8a6e19d5b591c5a39925caa220248e34c95c85fd66ea6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-07T15:34:04Z",
    "title_canon_sha256": "442c1670b2873223871d085e32a4264586f51246e8ca267f4d05ef16ead43b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02062",
    "kind": "arxiv",
    "version": 1
  }
}