Pith Number

pith:U7XYR2LP

pith:2013:U7XYR2LPS3L77XLMTQSXR57VZK

not attested not anchored not stored refs pending

First observational constraints on tensor non-Gaussianity sourced by primordial magnetic fields from cosmic microwave background

Maresuke Shiraishi, Toyokazu Sekiguchi

arxiv:1304.7277 v2 · 2013-04-26 · astro-ph.CO · gr-qc · 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{U7XYR2LPS3L77XLMTQSXR57VZK}

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	2026-05-18T02:37:52.134312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7ef88e96f96d7ffdd6c9c2578f7f5ca8944f6cb32e7b5efc1b5aee8188c4f92

Aliases

arxiv: 1304.7277 · arxiv_version: 1304.7277v2 · doi: 10.48550/arxiv.1304.7277 · pith_short_12: U7XYR2LPS3L7 · pith_short_16: U7XYR2LPS3L77XLM · pith_short_8: U7XYR2LP

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/U7XYR2LPS3L77XLMTQSXR57VZK \
  | 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: a7ef88e96f96d7ffdd6c9c2578f7f5ca8944f6cb32e7b5efc1b5aee8188c4f92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6418551b7d67e210fcb99b5d326283d3db762cff6e3feb9a4da32971f64d05f7",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-26T20:26:58Z",
    "title_canon_sha256": "7e96fc48506c562f3e95a8500da6439027da07312ea844ccd6717b6ae517b378"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7277",
    "kind": "arxiv",
    "version": 2
  }
}