Pith Number

pith:GT7A5EOT

pith:2021:GT7A5EOTA57CUGXXSACGS65ALR

not attested not anchored not stored refs pending

Stringent axion constraints with Event Horizon Telescope polarimetric measurements of M87$^\star$

Jing Shu, Qiang Yuan, Ru-Sen Lu, Xiao Xue, Yifan Chen, Yosuke Mizuno, Yue Zhao, Yuxin Liu

arxiv:2105.04572 v2 · 2021-05-10 · hep-ph · astro-ph.HE · 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{GT7A5EOTA57CUGXXSACGS65ALR}

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

3 papers in Pith

Gravitational superfluorescence from superradiant axion clouds

Constraining interacting dark energy models with black hole superradiance

Stellar Superradiance and Low-Energy Absorption in Dense Nuclear Media

Receipt and verification

First computed	2026-07-05T04:24:55.321687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34fe0e91d3077e2a1af79004697ba05c796353b334c86f54d7998800a16bef2c

Aliases

arxiv: 2105.04572 · arxiv_version: 2105.04572v2 · doi: 10.48550/arxiv.2105.04572 · pith_short_12: GT7A5EOTA57C · pith_short_16: GT7A5EOTA57CUGXX · pith_short_8: GT7A5EOT

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/GT7A5EOTA57CUGXXSACGS65ALR \
  | 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: 34fe0e91d3077e2a1af79004697ba05c796353b334c86f54d7998800a16bef2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8b22242467aa8b876b1d87a501989a746c5370d3a93320f145924d426427c36",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-05-10T18:00:03Z",
    "title_canon_sha256": "a1142b12ed3f2d21da4f23a2056de793f100ef57fd2f93b65f4b38f79fdb9d35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04572",
    "kind": "arxiv",
    "version": 2
  }
}