Pith Number

pith:I3MOZ6ZH

pith:1999:I3MOZ6ZHJJX47FGGIEZXOSI64J

not attested not anchored not stored refs pending

Is Galactic Star Formation Activity Increased During Cluster Mergers?

(2) Kyoto U.), Masahiro Nagashima, Motohiro Enoki (1) ((1) Osaka U., Motokazu Takizawa (2), Yutaka Fujita (1)

arxiv:astro-ph/9904386 v1 · 1999-04-28 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I3MOZ6ZHJJX47FGGIEZXOSI64J}

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	2026-05-18T01:40:13.190605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46d8ecfb274a6fcf94c6413377491ee26c658762fca62fec1640cec562c0558d

Aliases

arxiv: astro-ph/9904386 · arxiv_version: astro-ph/9904386v1 · doi: 10.48550/arxiv.astro-ph/9904386 · pith_short_12: I3MOZ6ZHJJX4 · pith_short_16: I3MOZ6ZHJJX47FGG · pith_short_8: I3MOZ6ZH

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/I3MOZ6ZHJJX47FGGIEZXOSI64J \
  | 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: 46d8ecfb274a6fcf94c6413377491ee26c658762fca62fec1640cec562c0558d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b3f0c7e5b42cf127cbe86c001c234cae9b79b852f80eb20d7e3cc99df8feba5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-28T11:03:12Z",
    "title_canon_sha256": "963ee2b112b1acb54cb7b7bdb8ce74320112dcc4f26504a604da6f932e9501ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904386",
    "kind": "arxiv",
    "version": 1
  }
}