Pith Number

pith:645GNP2Q

pith:2020:645GNP2QQ3CSWBFPUZWEZL6VN3

not attested not anchored not stored refs pending

Constraints on variation of fine structure constant from joint SPT-SZ and XMM-Newton observations

Kamal Bora, Shantanu Desai

arxiv:2008.10541 v2 · 2020-08-24 · astro-ph.CO · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{645GNP2QQ3CSWBFPUZWEZL6VN3}

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

A MINOT-based Study of Gamma-ray emission from SPT-CL J2012-5649/Abell 3667

Receipt and verification

First computed	2026-07-05T02:14:29.974199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f73a66bf5086c52b04afa66c4cafd56ec72bbce285581a4882d051876eecb21b

Aliases

arxiv: 2008.10541 · arxiv_version: 2008.10541v2 · doi: 10.48550/arxiv.2008.10541 · pith_short_12: 645GNP2QQ3CS · pith_short_16: 645GNP2QQ3CSWBFP · pith_short_8: 645GNP2Q

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/645GNP2QQ3CSWBFPUZWEZL6VN3 \
  | 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: f73a66bf5086c52b04afa66c4cafd56ec72bbce285581a4882d051876eecb21b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e83a26d0ef399b4de039494715790e80e98f73a91d32f441929cbe3462cf4e",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-08-24T16:27:15Z",
    "title_canon_sha256": "0170f9668545e4916b19d875e4da7e1a1d77630b8d9d3f1d9de95696585c6c37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.10541",
    "kind": "arxiv",
    "version": 2
  }
}