Pith Number

pith:QDG63BUS

pith:2017:QDG63BUSXIK3V6UYNZMVHHG6MC

not attested not anchored not stored refs pending

From Clumps to Cores to Protostars: The JCMT Gould Belt Survey's "First-Look" analysis of Southern Orion A using SCUBA-2

Doug Johnstone, Helen Kirk, Steve Mairs

arxiv:1712.01415 v1 · 2017-12-04 · 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{QDG63BUSXIK3V6UYNZMVHHG6MC}

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	2026-05-18T00:28:50.858911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80cded8692ba15bafa986e59539cde60a59e402460a87d244c7667b56604048c

Aliases

arxiv: 1712.01415 · arxiv_version: 1712.01415v1 · doi: 10.48550/arxiv.1712.01415 · pith_short_12: QDG63BUSXIK3 · pith_short_16: QDG63BUSXIK3V6UY · pith_short_8: QDG63BUS

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/QDG63BUSXIK3V6UYNZMVHHG6MC \
  | 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: 80cded8692ba15bafa986e59539cde60a59e402460a87d244c7667b56604048c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c486f2e280eeebedb33f9fd8d937d15d9c5da1f38614e8bd82d5cbe654442a1a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-04T23:41:08Z",
    "title_canon_sha256": "a6292dec0eef448e0325bc1c39d9571266e7879fe1b12ae64890deb9ac868191"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01415",
    "kind": "arxiv",
    "version": 1
  }
}