Pith Number

pith:H63BHTDO

pith:2023:H63BHTDO2QDGUHR5OAOCPYTKXB

not attested not anchored not stored refs pending

A Model-independent Method to Determine $H_0$ Using Time-Delay Lensing, Quasars and Type Ia Supernovae

Arman Shafieloo, Kai Liao, Ryan E. Keeley, Xiaolei Li

arxiv:2308.06951 v2 · 2023-08-14 · 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{H63BHTDO2QDGUHR5OAOCPYTKXB}

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.

Cited by

1 paper in Pith

Deep Learning Calibration of the Quasar X-ray/UV Luminosity Relation for Cosmological Applications

Receipt and verification

First computed	2026-07-05T07:37:50.934773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fb613cc6ed4066a1e3d701c27e26ab8773886bcbe2106d7c1e0bafcbf7f1f1f

Aliases

arxiv: 2308.06951 · arxiv_version: 2308.06951v2 · doi: 10.48550/arxiv.2308.06951 · pith_short_12: H63BHTDO2QDG · pith_short_16: H63BHTDO2QDGUHR5 · pith_short_8: H63BHTDO

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/H63BHTDO2QDGUHR5OAOCPYTKXB \
  | 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: 3fb613cc6ed4066a1e3d701c27e26ab8773886bcbe2106d7c1e0bafcbf7f1f1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1921ebea9627e75f8dc35c3f44b85c5a5ec3b77d1944e4cf77cfe764f919433d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-08-14T06:03:41Z",
    "title_canon_sha256": "8183f63e4dad22286b9fe651211780ce36519d7f860ef4859e8b894b159e8790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.06951",
    "kind": "arxiv",
    "version": 2
  }
}