Pith Number

pith:4ZIUNVPW

pith:2012:4ZIUNVPWZIAKPUK5QA4LJTHJCT

not attested not anchored not stored refs pending

Extended warm and dense gas towards W49A: starburst conditions in our Galaxy?

F. F. S. van der Tak, G. A. Fuller, M. Spaans, R. Plume, Z. Nagy

arxiv:1204.0390 v1 · 2012-04-02 · 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{4ZIUNVPWZIAKPUK5QA4LJTHJCT}

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	2026-05-18T01:57:58.153769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e65146d5f6ca00a7d15d8038b4cce914f723369cf8a736fcfeb1dea986bbe0b1

Aliases

arxiv: 1204.0390 · arxiv_version: 1204.0390v1 · doi: 10.48550/arxiv.1204.0390 · pith_short_12: 4ZIUNVPWZIAK · pith_short_16: 4ZIUNVPWZIAKPUK5 · pith_short_8: 4ZIUNVPW

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/4ZIUNVPWZIAKPUK5QA4LJTHJCT \
  | 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: e65146d5f6ca00a7d15d8038b4cce914f723369cf8a736fcfeb1dea986bbe0b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17df284c17e8e1b0a0f9e405ca2dede7c5c25f44ef776e6bb3877395326f31e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-02T12:49:45Z",
    "title_canon_sha256": "a30de3652a6111d689afe94e0bf54d97f646efd854ec7990f4aa4368758aa7fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0390",
    "kind": "arxiv",
    "version": 1
  }
}