Pith Number

pith:FJW6YEOF

pith:2026:FJW6YEOFMSUHIE6UJOJPF6R7SD

not attested not anchored not stored refs pending

Constraining axion quadratic couplings with the Hulse-Taylor binary system

David J. E. Marsh, Malcolm Fairbairn, Shyam Balaji, Ziwen Yin

arxiv:2607.25631 v1 · 2026-07-28 · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJW6YEOFMSUHIE6UJOJPF6R7SD}

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	2026-07-29T01:25:53.894289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a6dec11c564a87413d44b92f2fa3f90cd2ce27ab29c4d74f8c059bd4cf0df8c

Aliases

arxiv: 2607.25631 · arxiv_version: 2607.25631v1 · doi: 10.48550/arxiv.2607.25631 · pith_short_12: FJW6YEOFMSUH · pith_short_16: FJW6YEOFMSUHIE6U · pith_short_8: FJW6YEOF

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/FJW6YEOFMSUHIE6UJOJPF6R7SD \
  | 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: 2a6dec11c564a87413d44b92f2fa3f90cd2ce27ab29c4d74f8c059bd4cf0df8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69acca7388341f8a3a9b9f5e2634a7d94883f59fd309faae9a685cd6fc0ab398",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-07-28T12:13:20Z",
    "title_canon_sha256": "b9c9a6e14d845980b7ab7a2dc91791f53439847a321d84761de7e776b9205337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25631",
    "kind": "arxiv",
    "version": 1
  }
}