Pith Number

pith:Q4Q7B4ND

pith:2020:Q4Q7B4NDHHYE2AFVDSKXFUCQTW

not attested not anchored not stored refs pending

Combined Limit on the Photon Mass with Nine Localized Fast Radio Bursts

Jun-Jie Wei, Xue-Feng Wu

arxiv:2006.09680 v2 · 2020-06-17 · astro-ph.HE · 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{Q4Q7B4NDHHYE2AFVDSKXFUCQTW}

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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

Bounding the photon mass with gravitationally lensed fast radio bursts

Receipt and verification

First computed	2026-07-05T02:06:09.649671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8721f0f1a339f04d00b51c9572d0509dbd88ce0b3f7b5678c3975ac6221fe17e

Aliases

arxiv: 2006.09680 · arxiv_version: 2006.09680v2 · doi: 10.48550/arxiv.2006.09680 · pith_short_12: Q4Q7B4NDHHYE · pith_short_16: Q4Q7B4NDHHYE2AFV · pith_short_8: Q4Q7B4ND

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/Q4Q7B4NDHHYE2AFVDSKXFUCQTW \
  | 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: 8721f0f1a339f04d00b51c9572d0509dbd88ce0b3f7b5678c3975ac6221fe17e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4a2c282204e639badda691176bb1833155d2a98660fce1b00dbef942a0de64d",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-06-17T06:44:06Z",
    "title_canon_sha256": "8c205bab49c6ef2236d8bfdf7cf76514387d5569206746fcab53dc27cac3b74b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.09680",
    "kind": "arxiv",
    "version": 2
  }
}