Pith Number

pith:S6IRFOHF

pith:2016:S6IRFOHFYMZZOVKAHPFF7M4JHG

not attested not anchored not stored refs pending

Modelling spatial variations of the speed of light

Adam Balcerzak, Mariusz P. Dabrowski, Vincenzo Salzano

arxiv:1604.07655 v2 · 2016-04-26 · astro-ph.CO · 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{S6IRFOHFYMZZOVKAHPFF7M4JHG}

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	2026-05-18T00:33:23.761652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

979112b8e5c3339755403bca5fb38939bd94a450338bcbbab3c476bcb3d740d5

Aliases

arxiv: 1604.07655 · arxiv_version: 1604.07655v2 · doi: 10.48550/arxiv.1604.07655 · pith_short_12: S6IRFOHFYMZZ · pith_short_16: S6IRFOHFYMZZOVKA · pith_short_8: S6IRFOHF

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/S6IRFOHFYMZZOVKAHPFF7M4JHG \
  | 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: 979112b8e5c3339755403bca5fb38939bd94a450338bcbbab3c476bcb3d740d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad69ce6697792180b24296ee89f45c7368caaf5e25d4acd14554ad3f122b0381",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-04-26T12:41:11Z",
    "title_canon_sha256": "43416d6158c1bc0195efb05800e80ae0f58f3e5e9b1d335cc84a2e5a63383e5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07655",
    "kind": "arxiv",
    "version": 2
  }
}