Pith Number

pith:VBFK34EQ

pith:2016:VBFK34EQVJS2C7GOQUQWFE74L7

not attested not anchored not stored refs pending

Light speed variation from gamma ray burst GRB 160509A

Bo-Qiang Ma, Haowei Xu

arxiv:1607.08043 v1 · 2016-07-27 · 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{VBFK34EQVJS2C7GOQUQWFE74L7}

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	2026-05-18T01:10:22.612148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a84aadf090aa65a17cce85216293fc5fc5fc763ab20b6aef458cad0ba20c35e0

Aliases

arxiv: 1607.08043 · arxiv_version: 1607.08043v1 · doi: 10.48550/arxiv.1607.08043 · pith_short_12: VBFK34EQVJS2 · pith_short_16: VBFK34EQVJS2C7GO · pith_short_8: VBFK34EQ

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/VBFK34EQVJS2C7GOQUQWFE74L7 \
  | 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: a84aadf090aa65a17cce85216293fc5fc5fc763ab20b6aef458cad0ba20c35e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c9b80430dcd2afdafc33d3fab3143d5babd6c53b21a05687a2f0bf1efddd0fb",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2016-07-27T11:31:20Z",
    "title_canon_sha256": "d7b617fa5937532631e161329e4fa2820ef0d969e6b81e8c080cb4054ffd8764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08043",
    "kind": "arxiv",
    "version": 1
  }
}