Pith Number

pith:I75Q2SHR

pith:2012:I75Q2SHRVAS4CYPK6T4XEUXAGS

not attested not anchored not stored refs pending

Gradient models of the axion-photon coupling

Alexander B. Balakin, Nadezhda O. Tarasova, Vladimir V. Bochkarev

arxiv:1201.3009 v1 · 2012-01-14 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I75Q2SHRVAS4CYPK6T4XEUXAGS}

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	2026-05-18T04:02:00.417439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47fb0d48f1a825c161eaf4f97252e0348f3e59c9a54487e4fc99c7541560e799

Aliases

arxiv: 1201.3009 · arxiv_version: 1201.3009v1 · doi: 10.48550/arxiv.1201.3009 · pith_short_12: I75Q2SHRVAS4 · pith_short_16: I75Q2SHRVAS4CYPK · pith_short_8: I75Q2SHR

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/I75Q2SHRVAS4CYPK6T4XEUXAGS \
  | 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: 47fb0d48f1a825c161eaf4f97252e0348f3e59c9a54487e4fc99c7541560e799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f470572ce7b855e84e3aed7a0568a100c60798e54453bc618ac268698f9442a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-14T12:16:52Z",
    "title_canon_sha256": "efd547f566ab7b8b1929fd3663b180fa118be55be1fbff2f99e6ccd0a18a63c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3009",
    "kind": "arxiv",
    "version": 1
  }
}