Pith Number

pith:BKJ4KD2Y

pith:2009:BKJ4KD2YYVR53T2HALZRNJSTFQ

not attested not anchored not stored refs pending

Scaling Relations in Dissipationless Spiral-like Galaxy Mergers

F. Cruz, H. Aceves, H. Velazquez

arxiv:0905.2475 v1 · 2009-05-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKJ4KD2YYVR53T2HALZRNJSTFQ}

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	2026-05-18T04:29:43.038769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a93c50f58c563ddcf4702f316a6532c36f9845b63ec46f5535fd1e0583d4593

Aliases

arxiv: 0905.2475 · arxiv_version: 0905.2475v1 · doi: 10.48550/arxiv.0905.2475 · pith_short_12: BKJ4KD2YYVR5 · pith_short_16: BKJ4KD2YYVR53T2H · pith_short_8: BKJ4KD2Y

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/BKJ4KD2YYVR53T2HALZRNJSTFQ \
  | 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: 0a93c50f58c563ddcf4702f316a6532c36f9845b63ec46f5535fd1e0583d4593

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7d382d5170462735343701a1798219543d17799c8b87fa1af8924cddd8d6eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-15T06:02:05Z",
    "title_canon_sha256": "0d7d7d6a372411e7e10320843fc12f0aef8e9d2e8e5be8b36a187e31c91b82dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2475",
    "kind": "arxiv",
    "version": 1
  }
}