Pith Number

pith:L33XSOJJ

pith:2012:L33XSOJJEN62SNS3XQE6KGQGC6

not attested not anchored not stored refs pending

DNC/HNC Ratio of Massive Clumps in Early Evolutionary Stages of High-Mass Star Formation

Kenji Furuya, Nami Sakai, Satoshi Yamamoto, Takeshi Sakai, Tomoya Hirota, Yuri Aikawa

arxiv:1201.4430 v1 · 2012-01-21 · 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{L33XSOJJEN62SNS3XQE6KGQGC6}

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	2026-05-18T01:58:44.032198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ef7793929237da9365bbc09e51a0617b6cdbac652efedac8c96054b0152222d

Aliases

arxiv: 1201.4430 · arxiv_version: 1201.4430v1 · doi: 10.48550/arxiv.1201.4430 · pith_short_12: L33XSOJJEN62 · pith_short_16: L33XSOJJEN62SNS3 · pith_short_8: L33XSOJJ

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/L33XSOJJEN62SNS3XQE6KGQGC6 \
  | 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: 5ef7793929237da9365bbc09e51a0617b6cdbac652efedac8c96054b0152222d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eb05337187cc0a386ec0b0677a23159390a6a36adeb74021a59067d0b17c0f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-21T03:57:26Z",
    "title_canon_sha256": "107ef777ed97c9dd96f575d60006f42f8d65a8057a54867296ae67080d5d6690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4430",
    "kind": "arxiv",
    "version": 1
  }
}