Pith Number

pith:Q6EP5NQ7

pith:2014:Q6EP5NQ7QPKAM3ANQAUUAN7TXE

not attested not anchored not stored refs pending

The cometary HII regions of DR 21: Bow shocks or champagne flows or both?

C. Cyganowski, K. Immer, K. M. Menten, M. J. Reid

arxiv:1401.1343 v1 · 2014-01-07 · 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{Q6EP5NQ7QPKAM3ANQAUUAN7TXE}

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	2026-05-18T02:57:07.759066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8788feb61f83d4066c0d80294037f3b9157f18c34af418f1a7a79c095082adf4

Aliases

arxiv: 1401.1343 · arxiv_version: 1401.1343v1 · doi: 10.48550/arxiv.1401.1343 · pith_short_12: Q6EP5NQ7QPKA · pith_short_16: Q6EP5NQ7QPKAM3AN · pith_short_8: Q6EP5NQ7

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/Q6EP5NQ7QPKAM3ANQAUUAN7TXE \
  | 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: 8788feb61f83d4066c0d80294037f3b9157f18c34af418f1a7a79c095082adf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce7dd51a1442e53e335aff5ffc37d26e0f186f4dec285d6ee13966359b3d46f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-07T11:25:32Z",
    "title_canon_sha256": "f0342e494db95901a320447d3657de9f6be79338f7dc2813b7bd2ac46fa8fba8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1343",
    "kind": "arxiv",
    "version": 1
  }
}