Pith Number

pith:ECYEGUQC

pith:2018:ECYEGUQCYDGYF4QRF5NEHNQRY2

not attested not anchored not stored refs pending

Magnetic Field Magnitude Modification for a Force-free Magnetic Cloud Model

C.-C. Wu, C. Kay, D. B. Berdichevsky, R. P. Lepping

arxiv:1811.07978 v1 · 2018-11-19 · astro-ph.SR · astro-ph.EP · physics.space-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{ECYEGUQCYDGYF4QRF5NEHNQRY2}

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	2026-05-17T23:57:37.367806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20b0435202c0cd82f2112f5a43b611c6b14a3c236474dfd8f442c725eaf6290d

Aliases

arxiv: 1811.07978 · arxiv_version: 1811.07978v1 · doi: 10.48550/arxiv.1811.07978 · pith_short_12: ECYEGUQCYDGY · pith_short_16: ECYEGUQCYDGYF4QR · pith_short_8: ECYEGUQC

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/ECYEGUQCYDGYF4QRF5NEHNQRY2 \
  | 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: 20b0435202c0cd82f2112f5a43b611c6b14a3c236474dfd8f442c725eaf6290d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da39e653ad2cd8880142437fe831a0f57b478d5a75204deb5104f9eea371b8dc",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-19T20:59:32Z",
    "title_canon_sha256": "ce7ee96353927fefa3908eadbbb35a6357cbc4f81fb9033838bb28d59564b679"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07978",
    "kind": "arxiv",
    "version": 1
  }
}