Pith Number

pith:SACCHBTO

pith:2014:SACCHBTOYRXUJ6R5LU5DNXXKP4

not attested not anchored not stored refs pending

Do the constants of nature couple to strong gravitational fields?

Astronomy, Australia), Centre for Mathematical Sciences, D. Dougan (4), J. B. Holberg (2), J. C. Berengut (4), J. D. Barrow (3), J. Hu (4) ((1) Department of Physics, J. K. Webb (4), M. A. Barstow (1), New South Wales 2052, Planetary Laboratory, S. P. Preval (1), Sydney, University of Arizona (3) DAMPT, University of Cambridge (4) School of Physics, University of Leicester (2) Lunar, University of New South Wales

arxiv:1410.0809 v2 · 2014-10-03 · astro-ph.SR · 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{SACCHBTOYRXUJ6R5LU5DNXXKP4}

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	2026-05-18T02:40:17.600672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

900423866ec46f44fa3d5d3a36deea7f3642e6e6b5d8b42095e100ef97815110

Aliases

arxiv: 1410.0809 · arxiv_version: 1410.0809v2 · doi: 10.48550/arxiv.1410.0809 · pith_short_12: SACCHBTOYRXU · pith_short_16: SACCHBTOYRXUJ6R5 · pith_short_8: SACCHBTO

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/SACCHBTOYRXUJ6R5LU5DNXXKP4 \
  | 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: 900423866ec46f44fa3d5d3a36deea7f3642e6e6b5d8b42095e100ef97815110

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3b8dede11469912870f6f52fa1ab6256944bd564e1749dfd069fac546a478f5",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-03T10:45:10Z",
    "title_canon_sha256": "3e77750d7960651168e457a65c70ac3c53f72731e13676983db5d447fc98aa95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0809",
    "kind": "arxiv",
    "version": 2
  }
}