Pith Number

pith:Y6ZMMOUE

pith:2012:Y6ZMMOUEBQDP2VSXVNT5EXFTW2

not attested not anchored not stored refs pending

There are no starless massive proto-clusters in the first quadrant of the Galaxy

A. Ginsburg, C. Battersby, E. Bressert, J. Bally

arxiv:1208.4097 v2 · 2012-08-20 · 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{Y6ZMMOUEBQDP2VSXVNT5EXFTW2}

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	2026-05-18T01:55:09.100589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7b2c63a840c06fd5657ab67d25cb3b6abacc876d7fcd682be3aecb07cff2709

Aliases

arxiv: 1208.4097 · arxiv_version: 1208.4097v2 · doi: 10.48550/arxiv.1208.4097 · pith_short_12: Y6ZMMOUEBQDP · pith_short_16: Y6ZMMOUEBQDP2VSX · pith_short_8: Y6ZMMOUE

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/Y6ZMMOUEBQDP2VSXVNT5EXFTW2 \
  | 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: c7b2c63a840c06fd5657ab67d25cb3b6abacc876d7fcd682be3aecb07cff2709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd34dcdb265b6e821a7ff1f74686e2facc4385fe19698a5907efda8a08f7890a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-08-20T20:00:00Z",
    "title_canon_sha256": "c93353b383e5746ae461b3c100fda2d7691d9abdfd1172bde7960d1d4be48fc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4097",
    "kind": "arxiv",
    "version": 2
  }
}