Pith Number

pith:X62HENQ4

pith:2008:X62HENQ4ZFTZEZG5STUNSUYY4Q

not attested not anchored not stored refs pending

Mergers and Disk Survival in LCDM

Chris W. Purcell (UC Irvine), James S. Bullock, Kyle R. Stewart

arxiv:0811.0861 v1 · 2008-11-06 · 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{X62HENQ4ZFTZEZG5STUNSUYY4Q}

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	2026-05-18T02:15:22.043207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfb472361cc9679264dd94e8d95318e424c0fa3521015cdca068cecfe1b123a2

Aliases

arxiv: 0811.0861 · arxiv_version: 0811.0861v1 · doi: 10.48550/arxiv.0811.0861 · pith_short_12: X62HENQ4ZFTZ · pith_short_16: X62HENQ4ZFTZEZG5 · pith_short_8: X62HENQ4

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/X62HENQ4ZFTZEZG5STUNSUYY4Q \
  | 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: bfb472361cc9679264dd94e8d95318e424c0fa3521015cdca068cecfe1b123a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea594beba86117d3de98aa5d0d5b76effe477f6482663fa392cbfd52d059175a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-06T03:13:18Z",
    "title_canon_sha256": "a868cb7a2006afffe5241575a03be647c05918353e77f88b26fdcdbfa68a5f51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0861",
    "kind": "arxiv",
    "version": 1
  }
}