Pith Number

pith:6TKRU7ZD

pith:2015:6TKRU7ZDGNRPR7DBRW4V2QC5D2

not attested not anchored not stored refs pending

The HCN/HNC abundance ratio toward different evolutionary phases of massive star formation

Jeong-Eun Lee, Kee-Tae Kim, Mihwa Jin

arxiv:1505.00849 v1 · 2015-05-05 · 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{6TKRU7ZDGNRPR7DBRW4V2QC5D2}

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	2026-05-18T02:16:59.850907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4d51a7f233362f8fc618db95d405d1ea69d7ca019abc90b05e151a654fd42f4

Aliases

arxiv: 1505.00849 · arxiv_version: 1505.00849v1 · doi: 10.48550/arxiv.1505.00849 · pith_short_12: 6TKRU7ZDGNRP · pith_short_16: 6TKRU7ZDGNRPR7DB · pith_short_8: 6TKRU7ZD

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/6TKRU7ZDGNRPR7DBRW4V2QC5D2 \
  | 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: f4d51a7f233362f8fc618db95d405d1ea69d7ca019abc90b05e151a654fd42f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06847001f6c106c6dc6517d9d5c6982b7199140c73356caf4e0f89ba9455cea8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-05T00:25:49Z",
    "title_canon_sha256": "210570fc8e4374d9722447d410f19862a568c7f372fe43be7699a7f5598efe09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00849",
    "kind": "arxiv",
    "version": 1
  }
}