Pith Number

pith:ZRAXZ7IR

pith:2013:ZRAXZ7IRAOQM7PCNCTGGV7X2JT

not attested not anchored not stored refs pending

Constraints on primordial magnetic fields from CMB distortions in the axiverse

David J. E. Marsh, Hiroyuki Tashiro, Joseph Silk

arxiv:1308.0314 v2 · 2013-08-01 · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZRAXZ7IRAOQM7PCNCTGGV7X2JT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:03:33.443985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc417cfd1103a0cfbc4d14cc6afefa4cf72aa4930ab7da63d20a96d5308eaf05

Aliases

arxiv: 1308.0314 · arxiv_version: 1308.0314v2 · doi: 10.48550/arxiv.1308.0314 · pith_short_12: ZRAXZ7IRAOQM · pith_short_16: ZRAXZ7IRAOQM7PCN · pith_short_8: ZRAXZ7IR

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/ZRAXZ7IRAOQM7PCNCTGGV7X2JT \
  | 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: cc417cfd1103a0cfbc4d14cc6afefa4cf72aa4930ab7da63d20a96d5308eaf05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14ed20bd057f3e065c1d3445173bd3a8c3bc687f2d4e2e050c8a5beec0b99d60",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-01T19:41:15Z",
    "title_canon_sha256": "e11295c458aa6d676fff8698778e6a9775cb15f5d255d9e59b832c57e901265d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0314",
    "kind": "arxiv",
    "version": 2
  }
}