Pith Number

pith:5QFN6TCA

pith:2016:5QFN6TCAJNUJKNHMSIFOOR4RT6

not attested not anchored not stored refs pending

Historical Auroras in the 990s: Evidence for Great Magnetic Storms

Harufumi Tamazawa, Hiroaki Isobe, Hiroko Miyahara, Hisashi Hayakawa, Kiyomi Iwahashi, Shunsuke Kosaka, Yurina Uchiyama, Yusuke Ebihara

arxiv:1612.01106 v1 · 2016-12-04 · astro-ph.SR · physics.hist-ph · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QFN6TCAJNUJKNHMSIFOOR4RT6}

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	2026-05-18T00:54:57.640081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec0adf4c404b689534ec920ae747919f8b5c13e54b524ecf01dbc936ba3ba26b

Aliases

arxiv: 1612.01106 · arxiv_version: 1612.01106v1 · doi: 10.48550/arxiv.1612.01106 · pith_short_12: 5QFN6TCAJNUJ · pith_short_16: 5QFN6TCAJNUJKNHM · pith_short_8: 5QFN6TCA

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/5QFN6TCAJNUJKNHMSIFOOR4RT6 \
  | 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: ec0adf4c404b689534ec920ae747919f8b5c13e54b524ecf01dbc936ba3ba26b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d60bd7520e14991cc5287003aa097437e52175e8c47ca93fb716b1e5e6e5dae6",
    "cross_cats_sorted": [
      "physics.hist-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-04T11:49:31Z",
    "title_canon_sha256": "da07c3aabef2d92d479cfbdeec60353d951818c96fd46e3755a4e32e58f6ad0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01106",
    "kind": "arxiv",
    "version": 1
  }
}