Pith Number

pith:2J3NPNPZ

pith:2020:2J3NPNPZCOOJRTY5GV5FNENWYI

not attested not anchored not stored refs pending

A Time-Varying Fine Structure Constant from Naturally Ultralight Dark Matter

Abhish Dev, Anson Hook, Dawid Brzeminski, Zackaria Chacko

arxiv:2012.02787 v3 · 2020-12-04 · 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{2J3NPNPZCOOJRTY5GV5FNENWYI}

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

6 papers in Pith

A directional force template for quadratically coupled ultralight dark matter

Background-Induced Forces from Quadratically Coupled Ultralight Dark Matter

$\phi$-Dwarfs: White Dwarfs probe Quadratically Coupled Scalars

Ultralight Dilatonic Dark Matter

Towards theory constraints on ultralight dark matter from quantum gravity

Receipt and verification

First computed	2026-07-05T04:54:12.654779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d276d7b5f9139c98cf1d357a5691b6c23a8452ffa1a59fd756f2a8268e370e3f

Aliases

arxiv: 2012.02787 · arxiv_version: 2012.02787v3 · doi: 10.48550/arxiv.2012.02787 · pith_short_12: 2J3NPNPZCOOJ · pith_short_16: 2J3NPNPZCOOJRTY5 · pith_short_8: 2J3NPNPZ

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/2J3NPNPZCOOJRTY5GV5FNENWYI \
  | 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: d276d7b5f9139c98cf1d357a5691b6c23a8452ffa1a59fd756f2a8268e370e3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8825b55eddf66e6bd3c390d09cc5711b004625c454897e72da432dac0cd1e283",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2020-12-04T18:59:19Z",
    "title_canon_sha256": "3aaac11654fe99d1a5da537154b9905bca59bda760e6486094cfdc923bcd8401"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02787",
    "kind": "arxiv",
    "version": 3
  }
}