Pith Number

pith:VW4SGGST

pith:2014:VW4SGGSTM6U25LHHBZPZCI2C72

not attested not anchored not stored refs pending

Halpha emission-line stars in molecular clouds. II. The M42 region

Bertil Pettersson, Bo Reipurth, Tina Armond

arxiv:1406.7037 v3 · 2014-06-26 · 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{VW4SGGSTM6U25LHHBZPZCI2C72}

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	2026-05-18T02:33:01.122187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adb9231a5367a9aeace70e5f912342feb4d159b7368538f169262b8f31dcefb1

Aliases

arxiv: 1406.7037 · arxiv_version: 1406.7037v3 · doi: 10.48550/arxiv.1406.7037 · pith_short_12: VW4SGGSTM6U2 · pith_short_16: VW4SGGSTM6U25LHH · pith_short_8: VW4SGGST

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/VW4SGGSTM6U25LHHBZPZCI2C72 \
  | 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: adb9231a5367a9aeace70e5f912342feb4d159b7368538f169262b8f31dcefb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fefd1f3319ae5b6ae44aa542e97d391a53df30dcb50c0f3391e74c0fdde8a08b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-06-26T21:55:07Z",
    "title_canon_sha256": "03101e990655515deb9021adb12cedc766fbf29075d359a79b0433c67bd735d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7037",
    "kind": "arxiv",
    "version": 3
  }
}