Pith Number

pith:XEMS4Y6T

pith:2011:XEMS4Y6TGNODRVYXXXNVRFPJFE

not attested not anchored not stored refs pending

Cosmological magnetic field survival

Christos G. Tsagas, John D. Barrow

arxiv:1101.2390 v3 · 2011-01-12 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XEMS4Y6TGNODRVYXXXNVRFPJFE}

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	2026-05-18T02:03:40.872191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9192e63d3335c38d717bddb5895e9290a656c43946a3518ffbc5336656670fe

Aliases

arxiv: 1101.2390 · arxiv_version: 1101.2390v3 · doi: 10.48550/arxiv.1101.2390 · pith_short_12: XEMS4Y6TGNOD · pith_short_16: XEMS4Y6TGNODRVYX · pith_short_8: XEMS4Y6T

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/XEMS4Y6TGNODRVYXXXNVRFPJFE \
  | 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: b9192e63d3335c38d717bddb5895e9290a656c43946a3518ffbc5336656670fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b38cd0dfbbe75569840a02c5dfbdd74a2ec21c4af2c2e6be3dcd48e5347d9f6",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-12T15:44:39Z",
    "title_canon_sha256": "f1854a73e1126438012642aa421b12d3af78c710a72c795378f3d439de1666dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2390",
    "kind": "arxiv",
    "version": 3
  }
}