Pith Number

pith:6JX4T22S

pith:2014:6JX4T22STWH3MAVYB3MNV4AQTD

not attested not anchored not stored refs pending

Fundamental Cosmology from Precision Spectroscopy: I. Varying Couplings

A. C. O. Leite, C. J. A. P. Martins, N. J. Nunes, P. O. J. Pedrosa

arxiv:1409.3963 v1 · 2014-09-13 · astro-ph.CO · gr-qc · hep-ph · hep-th · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6JX4T22STWH3MAVYB3MNV4AQTD}

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	2026-05-18T01:42:02.849782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f26fc9eb529d8fb602b80ed8daf01098e2d46061960bacb4f8cbe653a5570fce

Aliases

arxiv: 1409.3963 · arxiv_version: 1409.3963v1 · doi: 10.48550/arxiv.1409.3963 · pith_short_12: 6JX4T22STWH3 · pith_short_16: 6JX4T22STWH3MAVY · pith_short_8: 6JX4T22S

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/6JX4T22STWH3MAVYB3MNV4AQTD \
  | 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: f26fc9eb529d8fb602b80ed8daf01098e2d46061960bacb4f8cbe653a5570fce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82052bf9cf2804eb1dbb353e2bf7c175091397a3f39757d9d8becd79948b417b",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-09-13T16:05:27Z",
    "title_canon_sha256": "fdabdf732045a21cb5ca30ad702ce064428238c13a0ac07e07aa9a32690088f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3963",
    "kind": "arxiv",
    "version": 1
  }
}