Pith Number

pith:CW2KPAF6

pith:2014:CW2KPAF6YYFXXYMYEGVEWCDMWS

not attested not anchored not stored refs pending

A spectroscopic and photometric study of the planetary nebulae Kn 61 and Pa 5

D. Gonz\'alez-Buitrago, G. Tovmassian, G. Valyavin, J. A. L\'opez, Ma. T. Garc\'ia-D\'iaz, N. Borisov, S. Zharikov

arxiv:1406.4408 v2 · 2014-06-17 · 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{CW2KPAF6YYFXXYMYEGVEWCDMWS}

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	2026-05-18T01:42:55.796856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15b4a780bec60b7be19821aa4b086cb496b34678b68ffb0f6ebf1d591b55a72f

Aliases

arxiv: 1406.4408 · arxiv_version: 1406.4408v2 · doi: 10.48550/arxiv.1406.4408 · pith_short_12: CW2KPAF6YYFX · pith_short_16: CW2KPAF6YYFXXYMY · pith_short_8: CW2KPAF6

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/CW2KPAF6YYFXXYMYEGVEWCDMWS \
  | 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: 15b4a780bec60b7be19821aa4b086cb496b34678b68ffb0f6ebf1d591b55a72f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fec8e729b97736b978d7695c25392ea7aaf9e35bce431cc34f2c0d230ec49fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-06-17T15:58:44Z",
    "title_canon_sha256": "e8e3974417fddcf4a5ed2cfc95b9dec3949b1f29323a0b87fe80a7bcb056ffa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4408",
    "kind": "arxiv",
    "version": 2
  }
}