Pith Number

pith:E4HKPXYA

pith:2023:E4HKPXYALSMSYB6F3QBVLT52L7

not attested not anchored not stored refs pending

Comment on: "Questioning the $H_0$ tension via the look-back time"

Celia Escamilla-Rivera, Jos\'e Antonio N\'ajera

arxiv:2303.02140 v2 · 2023-03-03 · 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{E4HKPXYALSMSYB6F3QBVLT52L7}

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	2026-07-05T05:48:07.196895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

270ea7df005c992c07c5dc0355cfba5fc708f05d3074e024fb863ff10928dbb9

Aliases

arxiv: 2303.02140 · arxiv_version: 2303.02140v2 · doi: 10.48550/arxiv.2303.02140 · pith_short_12: E4HKPXYALSMS · pith_short_16: E4HKPXYALSMSYB6F · pith_short_8: E4HKPXYA

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/E4HKPXYALSMSYB6F3QBVLT52L7 \
  | 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: 270ea7df005c992c07c5dc0355cfba5fc708f05d3074e024fb863ff10928dbb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bbd7100f81ba957dcb528337094caf5a29c83b82ec602c3ae43b052bd1ba495",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-03-03T18:35:06Z",
    "title_canon_sha256": "4c9a42def44d19f3a617862c83b2e7f8ff76f563502724d6ddf7b0248fa4a229"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.02140",
    "kind": "arxiv",
    "version": 2
  }
}