Pith Number

pith:EANJB4ID

pith:2009:EANJB4IDS5XEQIUFFTVTAH3KQX

not attested not anchored not stored refs pending

Estimating Electric Fields from Vector Magnetogram Sequences

B. T. Welsch, D. J. Bercik, G. H. Fisher, W. P. Abbett

arxiv:0912.4916 v4 · 2009-12-24 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EANJB4IDS5XEQIUFFTVTAH3KQX}

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	2026-05-18T02:33:55.372951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

201a90f103976e4822852ceb301f6a85dcbd560fd3b7340d8c135c0c899b2853

Aliases

arxiv: 0912.4916 · arxiv_version: 0912.4916v4 · doi: 10.48550/arxiv.0912.4916 · pith_short_12: EANJB4IDS5XE · pith_short_16: EANJB4IDS5XEQIUF · pith_short_8: EANJB4ID

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/EANJB4IDS5XEQIUFFTVTAH3KQX \
  | 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: 201a90f103976e4822852ceb301f6a85dcbd560fd3b7340d8c135c0c899b2853

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c615aca248bb1578d0e7fd95870f6b729cbd734929cd6ff871d68253f191e7d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-24T21:18:44Z",
    "title_canon_sha256": "bafb8d70b4e6f6302eae0ebf9081a75c0f84253e42b788e732cf2a721a9c204d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4916",
    "kind": "arxiv",
    "version": 4
  }
}