Pith Number

pith:W4JQMKVC

pith:2005:W4JQMKVC6V2K4XTZGNQOSPVPFH

not attested not anchored not stored refs pending

Climate Forcing by the Volcanic Eruption of Mount Pinatubo. Revised edition

David H. Douglass, Robert S. Knox

arxiv:physics/0509166 v1 · 2005-09-20 · physics.geo-ph · physics.ao-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{W4JQMKVC6V2K4XTZGNQOSPVPFH}

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	2026-05-18T01:38:07.500323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b713062aa2f574ae5e793360e93eaf29dd873a996e8eeb16435980d630022d8e

Aliases

arxiv: physics/0509166 · arxiv_version: physics/0509166v1 · doi: 10.48550/arxiv.physics/0509166 · pith_short_12: W4JQMKVC6V2K · pith_short_16: W4JQMKVC6V2K4XTZ · pith_short_8: W4JQMKVC

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/W4JQMKVC6V2K4XTZGNQOSPVPFH \
  | 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: b713062aa2f574ae5e793360e93eaf29dd873a996e8eeb16435980d630022d8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fe95c4ecc55d2beb936dc241b6f213aadcd34acf58a98c5b42b03ab2a2da231",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2005-09-20T19:37:27Z",
    "title_canon_sha256": "a491550fda05e30833c2be27574e445f9399493d32a8d6a61aa635e6b3bf7aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0509166",
    "kind": "arxiv",
    "version": 1
  }
}