Pith Number

pith:RPWIRDS7

pith:2021:RPWIRDS7I72ASKKEVGI5CX55HG

not attested not anchored not stored refs pending

Consistency testing for invariance of the speed of light at different redshifts: the newest results from strong lensing and type Ia supernovae observations

Marek Biesiada, Shuo Cao, Tonghua Liu, Yilong Zhang, Yujie Lian, Yuting Liu

arxiv:2106.15145 v1 · 2021-06-29 · 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{RPWIRDS7I72ASKKEVGI5CX55HG}

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

Revisiting the Constancy of the Speed of Light: Galaxy Cluster Mass Bias Implications

Receipt and verification

First computed	2026-07-05T07:45:43.678147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bec888e5f47f4092944a991d15fbd39977b120737208f8c1d262216b697bda1

Aliases

arxiv: 2106.15145 · arxiv_version: 2106.15145v1 · doi: 10.48550/arxiv.2106.15145 · pith_short_12: RPWIRDS7I72A · pith_short_16: RPWIRDS7I72ASKKE · pith_short_8: RPWIRDS7

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/RPWIRDS7I72ASKKEVGI5CX55HG \
  | 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: 8bec888e5f47f4092944a991d15fbd39977b120737208f8c1d262216b697bda1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c0c6a1d5a19fc5b6e0419ab448f922fd0e02c0957d3b4510ab188e095c6c71f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-06-29T08:07:21Z",
    "title_canon_sha256": "0f8404e0937e763be99c4c390dfdacfa87112e49235fb0de5e04efa8deacb69a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.15145",
    "kind": "arxiv",
    "version": 1
  }
}