Pith Number

pith:L7JGDWCQ

pith:2015:L7JGDWCQVDSTVDSLZXML362YXY

not attested not anchored not stored refs pending

Giant H$\alpha$ nebula surrounding the starburst merger NGC 6240

Hisashi Tanaka, Masafumi Yagi, Michitoshi Yoshida, Nobunari Kashikawa, Sadanori Okamura, Youichi Ohyama, Yutaka Komiyama

arxiv:1512.09208 v1 · 2015-12-31 · 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{L7JGDWCQVDSTVDSLZXML362YXY}

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	2026-05-18T01:18:38.780678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fd261d850a8e53a8e4bcdd8bdfb58be02fbe037c3b01f8a323d23eda77a87a5

Aliases

arxiv: 1512.09208 · arxiv_version: 1512.09208v1 · doi: 10.48550/arxiv.1512.09208 · pith_short_12: L7JGDWCQVDST · pith_short_16: L7JGDWCQVDSTVDSL · pith_short_8: L7JGDWCQ

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/L7JGDWCQVDSTVDSLZXML362YXY \
  | 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: 5fd261d850a8e53a8e4bcdd8bdfb58be02fbe037c3b01f8a323d23eda77a87a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c285c18e43104ac45f61f7d572de4f73545e0a2a3a4a923e0ca5870d2d233a21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-12-31T03:53:42Z",
    "title_canon_sha256": "45fdfacc25f41946dc947513b914b4e38ec05a0c479575d39b4f294277aff25a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09208",
    "kind": "arxiv",
    "version": 1
  }
}