Pith Number

pith:W2WWBNNF

pith:2010:W2WWBNNFFUG7A4NETPX2BPTAOM

not attested not anchored not stored refs pending

The Origin and Evolution of the Halo PN BoBn 1: From a Viewpoint of Chemical Abundances Based on Multiwavelength Spectra

(2) Subaru Telescope/NAOJ, (3) Chungbuk National University, (4) Okayama Astrophysical Observatory/NAOJ), A. Tajitsu (2), H. Izumiura (4) ((1) STScI, M. Otsuka (1), S. Hyung (3)

arxiv:1008.4175 v1 · 2010-08-24 · 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{W2WWBNNFFUG7A4NETPX2BPTAOM}

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	2026-05-18T02:05:43.052277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6ad60b5a52d0df071a49befa0be60730deb205615a9cbfa5d9c1d17cc12e5e7

Aliases

arxiv: 1008.4175 · arxiv_version: 1008.4175v1 · doi: 10.48550/arxiv.1008.4175 · pith_short_12: W2WWBNNFFUG7 · pith_short_16: W2WWBNNFFUG7A4NE · pith_short_8: W2WWBNNF

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/W2WWBNNFFUG7A4NETPX2BPTAOM \
  | 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: b6ad60b5a52d0df071a49befa0be60730deb205615a9cbfa5d9c1d17cc12e5e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "551d26f3762ab5a90b729067348a56b811b50e58ecadf9340e41cfed757122fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-24T23:04:41Z",
    "title_canon_sha256": "eb9de629482406205cdedf6006349e1e3e6eb0b64059f4b841fb4145c56d755a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4175",
    "kind": "arxiv",
    "version": 1
  }
}