Pith Number

pith:NRGKSTFC

pith:2016:NRGKSTFCNNF4BY75IAQJ62VJ3V

not attested not anchored not stored refs pending

Photon Mass Limits from Fast Radio Bursts

Alessandro D.A.M. Spallicci, Alexander S. Sakharov, Edward K.G. Sarkisyan-Grinbaum, John Ellis, Luca Bonetti, Nikolaos E. Mavromatos

arxiv:1602.09135 v2 · 2016-02-29 · astro-ph.HE · astro-ph.CO · 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{NRGKSTFCNNF4BY75IAQJ62VJ3V}

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	2026-05-18T01:15:38.197520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c4ca94ca26b4bc0e3fd40209f6aa9dd6baf504fdc1b1ec24f3ac5050254416e

Aliases

arxiv: 1602.09135 · arxiv_version: 1602.09135v2 · doi: 10.48550/arxiv.1602.09135 · pith_short_12: NRGKSTFCNNF4 · pith_short_16: NRGKSTFCNNF4BY75 · pith_short_8: NRGKSTFC

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/NRGKSTFCNNF4BY75IAQJ62VJ3V \
  | 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: 6c4ca94ca26b4bc0e3fd40209f6aa9dd6baf504fdc1b1ec24f3ac5050254416e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c51ecb2bfcb121634cba2e2bf130c7ab0a007e8463baa7082db68efefae6ab8a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-02-29T20:54:09Z",
    "title_canon_sha256": "37cef593cb458c0c3ff25322824692bcb309c7def819db8078a97f238d61cae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.09135",
    "kind": "arxiv",
    "version": 2
  }
}