Pith Number

pith:MZQXH3DU

pith:2010:MZQXH3DU43UEJVKCXPPKV6GY5F

not attested not anchored not stored refs pending

An Aboriginal Australian Record of the Great Eruption of Eta Carinae

David J. Frew, Duane W. Hamacher

arxiv:1010.4610 v1 · 2010-10-22 · physics.hist-ph · astro-ph.SR · physics.soc-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{MZQXH3DU43UEJVKCXPPKV6GY5F}

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	2026-05-18T04:38:57.844750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

666173ec74e6e844d542bbdeaaf8d8e95fb2b03679634d2c1132be07fed7c580

Aliases

arxiv: 1010.4610 · arxiv_version: 1010.4610v1 · doi: 10.48550/arxiv.1010.4610 · pith_short_12: MZQXH3DU43UE · pith_short_16: MZQXH3DU43UEJVKC · pith_short_8: MZQXH3DU

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/MZQXH3DU43UEJVKCXPPKV6GY5F \
  | 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: 666173ec74e6e844d542bbdeaaf8d8e95fb2b03679634d2c1132be07fed7c580

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ea07b50a5363270f75b1472e1b3ba16fdc5cfcdea8eb414a0745cefd646f34c",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2010-10-22T04:18:34Z",
    "title_canon_sha256": "348bb2f5e6a24c772d0f836b0032678fb420af221fa71da228e1b362cf247ab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4610",
    "kind": "arxiv",
    "version": 1
  }
}