Pith Number

pith:WOU5BBZT

pith:2013:WOU5BBZTBRHOUVZ6FP3Z3BRD7Z

not attested not anchored not stored refs pending

Far-Ultraviolet Observations of the Spica Nebula and the Interaction Zone

Jae-Woo Park, Kwang-Il Seon, Kyoung-Wook Min, Tae-Ho Lim, Yeon-Ju Choi, Young-soo Jo

arxiv:1307.2664 v2 · 2013-07-10 · 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{WOU5BBZTBRHOUVZ6FP3Z3BRD7Z}

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	2026-05-18T01:48:52.493000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3a9d087330c4eea573e2bf79d8623fe7c19cc7829741b3a033579cba6d525f4

Aliases

arxiv: 1307.2664 · arxiv_version: 1307.2664v2 · doi: 10.48550/arxiv.1307.2664 · pith_short_12: WOU5BBZTBRHO · pith_short_16: WOU5BBZTBRHOUVZ6 · pith_short_8: WOU5BBZT

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/WOU5BBZTBRHOUVZ6FP3Z3BRD7Z \
  | 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: b3a9d087330c4eea573e2bf79d8623fe7c19cc7829741b3a033579cba6d525f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e97edf7d91c787403e495a3ca5d38f9e4a238321120e29fa8aa3f9b845cbda10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-07-10T03:55:44Z",
    "title_canon_sha256": "c40fbf66bc221e4580fb4bc043db2f3d2919d8fa91caf49fc298caae6d5ed28c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2664",
    "kind": "arxiv",
    "version": 2
  }
}