Pith Number

pith:6DGF7SAO

pith:2005:6DGF7SAOS2D2NJDHJ7H4PDZDRV

not attested not anchored not stored refs pending

Galaxy Collisions - Dawn of a New Era

Curtis Struck (Iowa State)

arxiv:astro-ph/0511335 v1 · 2005-11-10 · 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{6DGF7SAOS2D2NJDHJ7H4PDZDRV}

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	2026-05-18T01:40:33.084967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0cc5fc80e9687a6a4674fcfc78f238d646996c568f3d9ed0e5448af8fd62205

Aliases

arxiv: astro-ph/0511335 · arxiv_version: astro-ph/0511335v1 · doi: 10.48550/arxiv.astro-ph/0511335 · pith_short_12: 6DGF7SAOS2D2 · pith_short_16: 6DGF7SAOS2D2NJDH · pith_short_8: 6DGF7SAO

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/6DGF7SAOS2D2NJDHJ7H4PDZDRV \
  | 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: f0cc5fc80e9687a6a4674fcfc78f238d646996c568f3d9ed0e5448af8fd62205

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "824a88706808e0044d3109b8d3e0ae0bff363b1594dbcd61a2a89ad7d268d1c2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-11-10T21:55:30Z",
    "title_canon_sha256": "283f2f010c706ed9cce49e40ebc2029981560c403edecf5b598eff3637995d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0511335",
    "kind": "arxiv",
    "version": 1
  }
}