Pith Number

pith:QY5LOV4W

pith:2006:QY5LOV4WQDCG2H4HSZODP5GTYT

not attested not anchored not stored refs pending

Understanding Galaxy Formation and Evolution

Mexico), U.N.A.M., V. Avila-Reese (Instituto de Astronomia

arxiv:astro-ph/0605212 v1 · 2006-05-09 · 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{QY5LOV4WQDCG2H4HSZODP5GTYT}

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	2026-05-18T01:40:31.961783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

863ab7579680c46d1f87965c37f4d3c4c7e35c4839e7970b8748233ecd61a877

Aliases

arxiv: astro-ph/0605212 · arxiv_version: astro-ph/0605212v1 · doi: 10.48550/arxiv.astro-ph/0605212 · pith_short_12: QY5LOV4WQDCG · pith_short_16: QY5LOV4WQDCG2H4H · pith_short_8: QY5LOV4W

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/QY5LOV4WQDCG2H4HSZODP5GTYT \
  | 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: 863ab7579680c46d1f87965c37f4d3c4c7e35c4839e7970b8748233ecd61a877

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44eba30a79c65dace4d3d104fac8607876a79e0a91f33ab95ec7482760fe4403",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-09T17:39:04Z",
    "title_canon_sha256": "8ff4ad1f0ddfb39dec3210e4c4080db9c54847641833edf50ab7ba9bc373cda8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605212",
    "kind": "arxiv",
    "version": 1
  }
}