Pith Number

pith:MBLD2BF2

pith:2015:MBLD2BF2BTID7RGYC6EKFYMHTY

not attested not anchored not stored refs pending

Detecting the oldest geodynamo and attendant shielding from the solar wind: Implications for habitability

Eric E. Mamajek, Eric G. Blackman, John A. Tarduno

arxiv:1502.04410 v1 · 2015-02-16 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MBLD2BF2BTID7RGYC6EKFYMHTY}

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	2026-05-18T02:26:59.828454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60563d04ba0cd03fc4d81788a2e1879e220c137acf30f6273619d5ad6df329f7

Aliases

arxiv: 1502.04410 · arxiv_version: 1502.04410v1 · doi: 10.48550/arxiv.1502.04410 · pith_short_12: MBLD2BF2BTID · pith_short_16: MBLD2BF2BTID7RGY · pith_short_8: MBLD2BF2

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/MBLD2BF2BTID7RGYC6EKFYMHTY \
  | 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: 60563d04ba0cd03fc4d81788a2e1879e220c137acf30f6273619d5ad6df329f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13524e42d0d3a793cf605a6b691b92f058a4a052af17196de3bea36d8452adbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-02-16T03:01:47Z",
    "title_canon_sha256": "af3a5a068c143f398e0cacf58ee53df23317d64ac83f93943f984df1f06f9637"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04410",
    "kind": "arxiv",
    "version": 1
  }
}