Pith Number

pith:D7DSTUWU

pith:2007:D7DSTUWUHITJ2W2LXCRIWNTW7H

not attested not anchored not stored refs pending

On the Magnitude of Dark Energy Voids and Overdensities

David F. Mota, Douglas J. Shaw, Joseph Silk

arxiv:0709.2227 v2 · 2007-09-14 · 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{D7DSTUWUHITJ2W2LXCRIWNTW7H}

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	2026-05-18T04:37:11.625475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fc729d2d43a269d5b4bb8a28b3676f9d4801cc81223cdce06049d2d619e8348

Aliases

arxiv: 0709.2227 · arxiv_version: 0709.2227v2 · doi: 10.48550/arxiv.0709.2227 · pith_short_12: D7DSTUWUHITJ · pith_short_16: D7DSTUWUHITJ2W2L · pith_short_8: D7DSTUWU

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/D7DSTUWUHITJ2W2LXCRIWNTW7H \
  | 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: 1fc729d2d43a269d5b4bb8a28b3676f9d4801cc81223cdce06049d2d619e8348

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "579076ceebb69da9c930550371cff3fc46536a0e43ec51999ffd109070cc6328",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-14T08:28:37Z",
    "title_canon_sha256": "9403b002dc2ff1fcf5a25a9a5acf57c78a97a2f408a76428be36aa0ba5dfc561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2227",
    "kind": "arxiv",
    "version": 2
  }
}