Pith Number

pith:W7VPR2MZ

pith:2016:W7VPR2MZOBAAEDNERNTXBN6B5X

not attested not anchored not stored refs pending

Interpretation of Past Kingdoms Poems to Reconstruct the Physical Phenomena in the Past: Case of Great Tambora Eruption 1815

Mikrajuddin Abdullah

arxiv:1609.09225 v1 · 2016-09-29 · physics.geo-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{W7VPR2MZOBAAEDNERNTXBN6B5X}

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	2026-05-18T01:03:38.437732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7eaf8e9997040020da48b6770b7c1edda7d0606d7aeec0a709f39635192e82b

Aliases

arxiv: 1609.09225 · arxiv_version: 1609.09225v1 · doi: 10.48550/arxiv.1609.09225 · pith_short_12: W7VPR2MZOBAA · pith_short_16: W7VPR2MZOBAAEDNE · pith_short_8: W7VPR2MZ

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/W7VPR2MZOBAAEDNERNTXBN6B5X \
  | 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: b7eaf8e9997040020da48b6770b7c1edda7d0606d7aeec0a709f39635192e82b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0be983ce1c5953f6a2c67b92fbc06030301f421d6b00b0e1808b7b7fc4bd8ad9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2016-09-29T07:02:45Z",
    "title_canon_sha256": "419b8eb8306bad75d5cdbad47755b446db4f63d8d0bfbe55d1cd0dc6e6d12323"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09225",
    "kind": "arxiv",
    "version": 1
  }
}