Pith Number

pith:MLQ77XML

pith:2015:MLQ77XML77T3D3XEJLNBNEZEWO

not attested not anchored not stored refs pending

An ultralight pseudoscalar boson

David J. E. Marsh, Jihn E. Kim

arxiv:1510.01701 v2 · 2015-10-06 · hep-ph · 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{MLQ77XML77T3D3XEJLNBNEZEWO}

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	2026-05-18T01:21:30.727507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62e1ffdd8bffe7b1eee44ada169324b3a6f832630a458491e7521304144b0e1a

Aliases

arxiv: 1510.01701 · arxiv_version: 1510.01701v2 · doi: 10.48550/arxiv.1510.01701 · pith_short_12: MLQ77XML77T3 · pith_short_16: MLQ77XML77T3D3XE · pith_short_8: MLQ77XML

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/MLQ77XML77T3D3XEJLNBNEZEWO \
  | 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: 62e1ffdd8bffe7b1eee44ada169324b3a6f832630a458491e7521304144b0e1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6c18819ee5149af692b4b5f8ae6db2ec84b9832a2f5a2625e46362bfe93cf5a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2015-10-06T19:05:50Z",
    "title_canon_sha256": "6238e6bae2391f3992b81d0bf2695aec51d6e2858811eac6080b26f80d529483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.01701",
    "kind": "arxiv",
    "version": 2
  }
}