Pith Number

pith:5PIULJCH

pith:2008:5PIULJCHOTF72QOKAHUBSWEXPI

not attested not anchored not stored refs pending

Combined Effects of Galaxy Interactions and Large-Scale Environment on Galaxy Properties

Changbom Park (KIAS), Yun-Young Choi (ARCSEC)

arxiv:0809.2156 v1 · 2008-09-12 · 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{5PIULJCHOTF72QOKAHUBSWEXPI}

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	2026-05-18T04:29:32.729393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebd145a44774cbfd41ca01e81958977a2c0e95dcb9fe8e0e19db786ed7f39a1a

Aliases

arxiv: 0809.2156 · arxiv_version: 0809.2156v1 · doi: 10.48550/arxiv.0809.2156 · pith_short_12: 5PIULJCHOTF7 · pith_short_16: 5PIULJCHOTF72QOK · pith_short_8: 5PIULJCH

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/5PIULJCHOTF72QOKAHUBSWEXPI \
  | 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: ebd145a44774cbfd41ca01e81958977a2c0e95dcb9fe8e0e19db786ed7f39a1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bb1af1166c4125b78e3acc6e6c5342a5bde02525981ea58e2708290c85e7d9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-12T08:56:11Z",
    "title_canon_sha256": "6226cfe8a186c2adcf67464463de52f296aa4104848428f27f12830635e79d25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2156",
    "kind": "arxiv",
    "version": 1
  }
}