Pith Number

pith:DRQDRO7F

pith:2022:DRQDRO7FHRE5SM767G425UF4DR

not attested not anchored not stored refs pending

Bounding the Photon Mass with the Dedispersed Pulses of the Crab Pulsar and FRB 180916B

Chen-Ming Chang, Jun-Jie Wei, Song-Bo Zhang, Xue-Feng Wu

arxiv:2207.00950 v2 · 2022-07-03 · 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{DRQDRO7FHRE5SM767G425UF4DR}

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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	2026-07-05T05:33:47.537098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c6038bbe53c49d933fef9b9aed0bc1c4fcdec3902633a28c9a2c59f2b01f7b1

Aliases

arxiv: 2207.00950 · arxiv_version: 2207.00950v2 · doi: 10.48550/arxiv.2207.00950 · pith_short_12: DRQDRO7FHRE5 · pith_short_16: DRQDRO7FHRE5SM76 · pith_short_8: DRQDRO7F

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/DRQDRO7FHRE5SM767G425UF4DR \
  | 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: 1c6038bbe53c49d933fef9b9aed0bc1c4fcdec3902633a28c9a2c59f2b01f7b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d84d9266ccd0e55b73a1505ceb4ffb390744449ec70bd1ecb7b6c0306ec854d",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-07-03T04:06:37Z",
    "title_canon_sha256": "b9c6e2cd9aeffdb09b09745be3ff34f3baa07bbce141a71bf49ee3b1b31ce15c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.00950",
    "kind": "arxiv",
    "version": 2
  }
}