Pith Number

pith:HDG4C3TK

pith:2021:HDG4C3TKUUDAACSHISKCXFFMK3

not attested not anchored not stored refs pending

Upper limits on Einstein's weak equivalence principle placed by uncertainties of dispersion measures of fast radio bursts

Alvina Y. L. On, Daryl Joe D. Santos, Ece Kilerci-Eser, Seong Jin Kim, Simon C.-C. Ho, Tetsuya Hashimoto, Tiger Y.-Y. Hsiao, Ting-Yi Lu, Tomotsugu Goto, Yi Hang Valerie Wong

arxiv:2111.11447 v2 · 2021-11-22 · gr-qc · astro-ph.CO · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HDG4C3TKUUDAACSHISKCXFFMK3}

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.

Receipt and verification

First computed	2026-07-05T03:45:54.408033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38cdc16e6aa506000a4744942b94ac56c4bdbcf9b8e885d6f0144e3feb071447

Aliases

arxiv: 2111.11447 · arxiv_version: 2111.11447v2 · doi: 10.48550/arxiv.2111.11447 · pith_short_12: HDG4C3TKUUDA · pith_short_16: HDG4C3TKUUDAACSH · pith_short_8: HDG4C3TK

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/HDG4C3TKUUDAACSHISKCXFFMK3 \
  | 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: 38cdc16e6aa506000a4744942b94ac56c4bdbcf9b8e885d6f0144e3feb071447

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1f6ebdd10ab0427e3ad32b88ca980a4d44d02c41ff4c86c9593fafa91112d94",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-11-22T19:00:02Z",
    "title_canon_sha256": "a8cb23df454e6e9b6174cbcf312766ccca9b068e891610a7c98c8c8cde27d9b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.11447",
    "kind": "arxiv",
    "version": 2
  }
}