Pith Number

pith:E2M5HJPP

pith:2011:E2M5HJPP4BYZVZ4US2VVK6DZ7Z

not attested not anchored not stored refs pending

Atmosphere-Ionosphere Response to the M9 Tohoku Earthquake Revealed by Joined Satellite and Ground Observations. Preliminary results

Alexander Romanov, Alexey Romanov, Dimitar Ouzounov, Dimitri Davidenko, Konstantin Tsybulya, Menas Kafatos, Patrick Taylor, Sergey Pulinets

arxiv:1105.2841 v1 · 2011-05-13 · physics.geo-ph · 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{E2M5HJPP4BYZVZ4US2VVK6DZ7Z}

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	2026-05-18T04:22:01.935903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2699d3a5efe0719ae79496ab557879fe40c187bd30fee5cfb1098dc81c2e4491

Aliases

arxiv: 1105.2841 · arxiv_version: 1105.2841v1 · doi: 10.48550/arxiv.1105.2841 · pith_short_12: E2M5HJPP4BYZ · pith_short_16: E2M5HJPP4BYZVZ4U · pith_short_8: E2M5HJPP

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/E2M5HJPP4BYZVZ4US2VVK6DZ7Z \
  | 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: 2699d3a5efe0719ae79496ab557879fe40c187bd30fee5cfb1098dc81c2e4491

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "418ddbce0a87334239b3aec4c0c2e5ab5440dc8cf07d706f410c54fbce83351a",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2011-05-13T21:25:08Z",
    "title_canon_sha256": "2e1b85ac0a91f19ea61448e306744118ff7f20ddfc5d48a2061f9167045f9865"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2841",
    "kind": "arxiv",
    "version": 1
  }
}