Pith Number

pith:NQPG24LN

pith:2009:NQPG24LN3FTKTR4LZUWPAMEGRE

not attested not anchored not stored refs pending

Locating the Baryon Acoustic Peak

Fergus Simpson, John A. Peacock, Patrick Simon

arxiv:0901.3085 v2 · 2009-01-20 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQPG24LN3FTKTR4LZUWPAMEGRE}

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	2026-07-04T15:39:58.770614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1e6d716dd966a9c78bcd2cf030868923787bf76606db1bf8c69727aa8f386a

Aliases

arxiv: 0901.3085 · arxiv_version: 0901.3085v2 · doi: 10.48550/arxiv.0901.3085 · pith_short_12: NQPG24LN3FTK · pith_short_16: NQPG24LN3FTKTR4L · pith_short_8: NQPG24LN

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/NQPG24LN3FTKTR4LZUWPAMEGRE \
  | 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: 6c1e6d716dd966a9c78bcd2cf030868923787bf76606db1bf8c69727aa8f386a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0debc6514f3b70dc3c923bf24ee92a7cbd1803f28c6d8135f142744b1a2738ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-20T16:12:42Z",
    "title_canon_sha256": "de5cbe6e1fc45bda36c8081af5f38a2fb28774ae0cfede664bb45bf4d7f67a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3085",
    "kind": "arxiv",
    "version": 2
  }
}