Pith Number

pith:7AU7P4PM

pith:2018:7AU7P4PMCCDQ7EBHGYEETVRXZ3

not attested not anchored not stored refs pending

Detections of massive stars in the cluster MCM2005b77, in the star-forming regions GRS G331.34$-$00.36 (S62) and GRS G337.92$-$00.48 (S36)

C.-H. Rosie Chen (MPIfR), Donald F. Figer (RIT), Karl M. Menten (MPIfR), Maria Messineo (USTC, Mpifr), R. Michael Rich (UCLA)

arxiv:1806.07571 v1 · 2018-06-20 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7AU7P4PMCCDQ7EBHGYEETVRXZ3}

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	2026-05-18T00:09:24.373932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f829f7f1ec10870f9027360849d637cecfd099e44ae98dbfa08266d7f54c43d8

Aliases

arxiv: 1806.07571 · arxiv_version: 1806.07571v1 · doi: 10.48550/arxiv.1806.07571 · pith_short_12: 7AU7P4PMCCDQ · pith_short_16: 7AU7P4PMCCDQ7EBH · pith_short_8: 7AU7P4PM

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/7AU7P4PMCCDQ7EBHGYEETVRXZ3 \
  | 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: f829f7f1ec10870f9027360849d637cecfd099e44ae98dbfa08266d7f54c43d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a1041163e499ba773452ebe45144e66e11eb754714240a0ed9d105a66ad24a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-20T06:24:42Z",
    "title_canon_sha256": "171db3c73ca1d5cde8a87c54f459471a44b2696d9fafcc2de135056b3d06f20d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07571",
    "kind": "arxiv",
    "version": 1
  }
}