Pith Number

pith:QK5EL3SW

pith:2012:QK5EL3SWTU7Y7V6RFP4P6NG5SV

not attested not anchored not stored refs pending

Class I methanol masers in low-mass star formation regions

C. M. Walmsley, L. E. B. Johansson, P. Bergman, P. Hofner, S. Kurtz, S. V. Kalenskii, V. I. Slysh

arxiv:1204.0950 v2 · 2012-04-04 · 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{QK5EL3SWTU7Y7V6RFP4P6NG5SV}

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	2026-05-18T01:57:57.144241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82ba45ee569d3f8fd7d12bf8ff34dd9552e44a18042d71780944127e52217bd9

Aliases

arxiv: 1204.0950 · arxiv_version: 1204.0950v2 · doi: 10.48550/arxiv.1204.0950 · pith_short_12: QK5EL3SWTU7Y · pith_short_16: QK5EL3SWTU7Y7V6R · pith_short_8: QK5EL3SW

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/QK5EL3SWTU7Y7V6RFP4P6NG5SV \
  | 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: 82ba45ee569d3f8fd7d12bf8ff34dd9552e44a18042d71780944127e52217bd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fadd6095d3dd9f145c4f8328b2d7af62f881e66f424522e9af0f6b47acbcbb2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-04T13:57:46Z",
    "title_canon_sha256": "1de4210d9c4e183b70b76fac4d23c065e3ff6f1745f7cde664414f952ab138b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0950",
    "kind": "arxiv",
    "version": 2
  }
}