Pith Number

pith:PLZP5PK6

pith:2015:PLZP5PK6OSWYNEJ77XQK4S2IRV

not attested not anchored not stored refs pending

Is the baryon acoustic oscillation peak a cosmological standard ruler?

Boudewijn F. Roukema, Hirokazu Fujii, Jan J. Ostrowski, Thomas Buchert

arxiv:1506.05478 v2 · 2015-06-17 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLZP5PK6OSWYNEJ77XQK4S2IRV}

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	2026-05-18T01:25:46.937326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af2febd5e74ad86913ffde0ae4b488d40c48368265347d851cbfbf42a3b1dba

Aliases

arxiv: 1506.05478 · arxiv_version: 1506.05478v2 · doi: 10.48550/arxiv.1506.05478 · pith_short_12: PLZP5PK6OSWY · pith_short_16: PLZP5PK6OSWYNEJ7 · pith_short_8: PLZP5PK6

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/PLZP5PK6OSWYNEJ77XQK4S2IRV \
  | 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: 7af2febd5e74ad86913ffde0ae4b488d40c48368265347d851cbfbf42a3b1dba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b195ba84e612209083b708caaefcd00745bb6eac9511cbc98dc5e3f9c1aec70d",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-06-17T20:07:06Z",
    "title_canon_sha256": "cd8843b38a89524e8537c35eb60397084fc9b6524d7a6b0b4bbfaa1a0852f9f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05478",
    "kind": "arxiv",
    "version": 2
  }
}