Pith Number

pith:4X67XPEI

pith:2009:4X67XPEIFQ43BSSRU7EMVAKGYF

not attested not anchored not stored refs pending

Discovery of a dense molecular cloud towards a young massive embedded star in 30 Doradus

G. Dubner, M. Rubio, S. Paron

arxiv:0906.5300 v1 · 2009-06-29 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4X67XPEIFQ43BSSRU7EMVAKGYF}

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	2026-05-18T02:13:11.998163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5fdfbbc882c39b0ca51a7c8ca8146c1521a039894a9c459238dd1d8fd3d6bcc

Aliases

arxiv: 0906.5300 · arxiv_version: 0906.5300v1 · doi: 10.48550/arxiv.0906.5300 · pith_short_12: 4X67XPEIFQ43 · pith_short_16: 4X67XPEIFQ43BSSR · pith_short_8: 4X67XPEI

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/4X67XPEIFQ43BSSRU7EMVAKGYF \
  | 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: e5fdfbbc882c39b0ca51a7c8ca8146c1521a039894a9c459238dd1d8fd3d6bcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "460cb5791efbc26f6a61d6d19480025635454829873b839a57de542d21ff1ad4",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-29T15:43:08Z",
    "title_canon_sha256": "69c4cabb2062fbf42357d75d5f364b1c6d5c294c1a1389c4173b1bb5234ced83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5300",
    "kind": "arxiv",
    "version": 1
  }
}