Pith Number

pith:2ZJ5B7QN

pith:2008:2ZJ5B7QN4NK4XOIHMSRGYMTOCA

not attested not anchored not stored refs pending

On the importance of high redshift intergalactic voids

Joerg M. Colberg, Matteo Viel, Tae-Sun Kim

arxiv:0801.1105 v2 · 2008-01-08 · 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{2ZJ5B7QN4NK4XOIHMSRGYMTOCA}

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	2026-07-04T17:08:20.503893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d653d0fe0de355cbb90764a26c326e10112ef805a247b00c6286890d9ac7d23b

Aliases

arxiv: 0801.1105 · arxiv_version: 0801.1105v2 · doi: 10.48550/arxiv.0801.1105 · pith_short_12: 2ZJ5B7QN4NK4 · pith_short_16: 2ZJ5B7QN4NK4XOIH · pith_short_8: 2ZJ5B7QN

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/2ZJ5B7QN4NK4XOIHMSRGYMTOCA \
  | 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: d653d0fe0de355cbb90764a26c326e10112ef805a247b00c6286890d9ac7d23b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a1418b89958daa9cb41043d836436e2df28b7c40695b479e19dc8ff91d01438",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-08T11:25:40Z",
    "title_canon_sha256": "716df858e84232168df923d9051003ec079b7de118092422a7e7e0dbb2eea2fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1105",
    "kind": "arxiv",
    "version": 2
  }
}