Pith Number

pith:NTY55ARQ

pith:2011:NTY55ARQPZYQ3JY3UQVYIFW5XK

not attested not anchored not stored refs pending

Fermi Problem: Power developed at the eruption of the Puyehue-Cord\'on Caulle volcanic system in June 2011

Arturo L\'opez D\'avalos, Hernan Asorey

arxiv:1109.1165 v2 · 2011-09-06 · physics.ed-ph · 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{NTY55ARQPZYQ3JY3UQVYIFW5XK}

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	2026-05-18T02:28:55.501119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cf1de82307e710da71ba42b8416ddba8b0dbad80fd6ba3110eaa6833a91e42a

Aliases

arxiv: 1109.1165 · arxiv_version: 1109.1165v2 · doi: 10.48550/arxiv.1109.1165 · pith_short_12: NTY55ARQPZYQ · pith_short_16: NTY55ARQPZYQ3JY3 · pith_short_8: NTY55ARQ

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/NTY55ARQPZYQ3JY3UQVYIFW5XK \
  | 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: 6cf1de82307e710da71ba42b8416ddba8b0dbad80fd6ba3110eaa6833a91e42a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3e395e191d2edabdb8a4a759f0b3a3d3608d837ee86268d57c0f3d1eb95d7b2",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-09-06T13:01:22Z",
    "title_canon_sha256": "9e88672ebe09f58c2210b23ef955c09baaf73cc75b703bc9b06c1b73541aa138"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1165",
    "kind": "arxiv",
    "version": 2
  }
}