Pith Number

pith:H2TMNIGJ

pith:2013:H2TMNIGJ7AZYYZHQNYIHCHR5VT

not attested not anchored not stored refs pending

Cosmic variance and the measurement of the local Hubble parameter

Ignacy Sawicki (U. Heidelberg, Inst. Theor. Phys.), ITP), Luca Amendola (U. Heidelberg, Valerio Marra (U. Heidelberg, Wessel Valkenburg (U. Leiden

arxiv:1303.3121 v4 · 2013-03-13 · 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{H2TMNIGJ7AZYYZHQNYIHCHR5VT}

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	2026-05-18T03:20:58.353163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ea6c6a0c9f8338c64f06e10711e3dacc6e652fe42e69ab32b24224b584c2c5d

Aliases

arxiv: 1303.3121 · arxiv_version: 1303.3121v4 · doi: 10.48550/arxiv.1303.3121 · pith_short_12: H2TMNIGJ7AZY · pith_short_16: H2TMNIGJ7AZYYZHQ · pith_short_8: H2TMNIGJ

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/H2TMNIGJ7AZYYZHQNYIHCHR5VT \
  | 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: 3ea6c6a0c9f8338c64f06e10711e3dacc6e652fe42e69ab32b24224b584c2c5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a542539bb9f75eb6a792fff514318cdc17b13af82e060d008e501d7ccfc0564f",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-13T10:12:15Z",
    "title_canon_sha256": "26505887aee353aa23d4048fabd67fe377025b0a4b630f1c4514eae7e690705b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3121",
    "kind": "arxiv",
    "version": 4
  }
}