Pith Number

pith:RFJA5P7I

pith:2014:RFJA5P7IUFQ6ZXKHD7TWOFUBZV

not attested not anchored not stored refs pending

On Time Variations of Gravitational and Yang-Mills Constants in a Cosmological Model of Superstring Origin

V. D. Ivashchuk, V. N. Melnikov

arxiv:1401.5491 v1 · 2014-01-21 · 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{RFJA5P7IUFQ6ZXKHD7TWOFUBZV}

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	2026-05-18T01:45:18.209544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89520ebfe8a161ecdd471fe7671681cd59ee2dc83de0ec242f00b0269d6dd84f

Aliases

arxiv: 1401.5491 · arxiv_version: 1401.5491v1 · doi: 10.48550/arxiv.1401.5491 · pith_short_12: RFJA5P7IUFQ6 · pith_short_16: RFJA5P7IUFQ6ZXKH · pith_short_8: RFJA5P7I

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/RFJA5P7IUFQ6ZXKHD7TWOFUBZV \
  | 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: 89520ebfe8a161ecdd471fe7671681cd59ee2dc83de0ec242f00b0269d6dd84f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "778d19a26701e6c98f8132ed384c8aa3aa05abcca85a6d2f1947107d8eb9740d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-01-21T21:17:37Z",
    "title_canon_sha256": "d912b71bb1b6d26f0f5e2ebcf9d6a0eb6aad6473439e3defa7bbe21c573cc833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5491",
    "kind": "arxiv",
    "version": 1
  }
}