Pith Number

pith:MTIE6QYB

pith:2012:MTIE6QYB4E2K3OMX2DF4R3SBEA

not attested not anchored not stored refs pending

The Protocluster G18.67+0.03: A Test Case for Class I Methanol Masers as Evolutionary Indicators for Massive Star Formation

C. J. Chandler, C. J. Cyganowski, C. L. Brogan, Q. Zhang, R. Indebetouw, R. K. Friesen, T. R. Hunter

arxiv:1210.3366 v2 · 2012-10-11 · astro-ph.GA · 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{MTIE6QYB4E2K3OMX2DF4R3SBEA}

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	2026-05-18T01:53:56.502132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64d04f4301e134adb997d0cbc8ee41202fdf63ad8d1d297a0552b3bb61a792c1

Aliases

arxiv: 1210.3366 · arxiv_version: 1210.3366v2 · doi: 10.48550/arxiv.1210.3366 · pith_short_12: MTIE6QYB4E2K · pith_short_16: MTIE6QYB4E2K3OMX · pith_short_8: MTIE6QYB

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/MTIE6QYB4E2K3OMX2DF4R3SBEA \
  | 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: 64d04f4301e134adb997d0cbc8ee41202fdf63ad8d1d297a0552b3bb61a792c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "261e962a9078681b9bba15bbe0bcc383d78d5b90e2f1850fbb40ae27bf589870",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-11T20:08:22Z",
    "title_canon_sha256": "8ad955f31adac85e272579036e5adba126b8eb6e93348e8e30015b9b434c148c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3366",
    "kind": "arxiv",
    "version": 2
  }
}