Pith Number

pith:VRLEHGGU

pith:2016:VRLEHGGUOFRKFRYJTY3AMYWA7B

not attested not anchored not stored refs pending

Light speed variation from gamma-ray bursts

Bo-Qiang Ma, Haowei Xu

arxiv:1607.03203 v3 · 2016-07-12 · 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{VRLEHGGUOFRKFRYJTY3AMYWA7B}

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	2026-05-18T01:05:42.308011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac564398d47162a2c7099e360662c0f85ea232ffa1d8a7e1ab913143712e4ce8

Aliases

arxiv: 1607.03203 · arxiv_version: 1607.03203v3 · doi: 10.48550/arxiv.1607.03203 · pith_short_12: VRLEHGGUOFRK · pith_short_16: VRLEHGGUOFRKFRYJ · pith_short_8: VRLEHGGU

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/VRLEHGGUOFRKFRYJTY3AMYWA7B \
  | 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: ac564398d47162a2c7099e360662c0f85ea232ffa1d8a7e1ab913143712e4ce8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76aa13b67f7a18ca0793cbf05638503a44cb1cbed4a2cf943f2920d8eb7d3b5d",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2016-07-12T00:06:08Z",
    "title_canon_sha256": "6a340a43b73c15e15727d6c7748d7d8a525ebe4f4165b78c00b390c6c8191850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03203",
    "kind": "arxiv",
    "version": 3
  }
}