Pith Number

pith:V6IOIWSB

pith:2019:V6IOIWSBXILAAHTAKGSMWCKQSS

not attested not anchored not stored refs pending

Occurrence of Great Magnetic Storms on 6-8 March 1582

Hisashi Hayakawa, Kentaro Hattori, Yusuke Ebihara

arxiv:1905.08017 v1 · 2019-05-20 · astro-ph.SR · physics.geo-ph · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V6IOIWSBXILAAHTAKGSMWCKQSS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:45:47.863101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af90e45a41ba16001e6051a4cb095094861b177a715938c669dda45387380931

Aliases

arxiv: 1905.08017 · arxiv_version: 1905.08017v1 · doi: 10.48550/arxiv.1905.08017 · pith_short_12: V6IOIWSBXILA · pith_short_16: V6IOIWSBXILAAHTA · pith_short_8: V6IOIWSB

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/V6IOIWSBXILAAHTAKGSMWCKQSS \
  | 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: af90e45a41ba16001e6051a4cb095094861b177a715938c669dda45387380931

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cdaa204aa30ea8d02d2aeba07c8879a8dc749f417f75505080c458cf69ea569",
    "cross_cats_sorted": [
      "physics.geo-ph",
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-05-20T12:05:00Z",
    "title_canon_sha256": "18dc27784cca1dcb21232ba0f64e62a79b6c01bc3d0f2591e95fa153eb7a9e55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08017",
    "kind": "arxiv",
    "version": 1
  }
}