Pith Number

pith:27JM5K3T

pith:2012:27JM5K3T7YFSGNZ3A7ZH7DBG3M

not attested not anchored not stored refs pending

The Optical Depth of H II Regions in the Magellanic Clouds

A. E. Jaskot, E. W. Pellegrini, J. Zastrow, M. S. Oey, P. F. Winkler, R. C. Smith, S. D. Points

arxiv:1202.3334 v6 · 2012-02-13 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27JM5K3T7YFSGNZ3A7ZH7DBG3M}

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	2026-05-18T01:58:28.062490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d2ceab73fe0b23373b07f27f8c26db0624ec0bb7fb84db6aaa681bb81bb343

Aliases

arxiv: 1202.3334 · arxiv_version: 1202.3334v6 · doi: 10.48550/arxiv.1202.3334 · pith_short_12: 27JM5K3T7YFS · pith_short_16: 27JM5K3T7YFSGNZ3 · pith_short_8: 27JM5K3T

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/27JM5K3T7YFSGNZ3A7ZH7DBG3M \
  | 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: d7d2ceab73fe0b23373b07f27f8c26db0624ec0bb7fb84db6aaa681bb81bb343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fe9e4cbf8ddfd3a49da4bac1fbde03450776a7907e2c9912ebd726ff036565f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-13T17:18:19Z",
    "title_canon_sha256": "a7d4996d80f668eff639a8af9f7b1827849655a0366c47ca91d734dfb6f21565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3334",
    "kind": "arxiv",
    "version": 6
  }
}