Pith Number

pith:5NIFWTIR

pith:2014:5NIFWTIRWILQWL5MV5CX5ZE7ZF

not attested not anchored not stored refs pending

Digitization of sunspot drawings by Sp\"orer made in 1861-1894

2), (2) University Potsdam, Andrea Diercke (1, Astronomy), Carsten Denker (1) ((1) Leibniz Institute for Astrophysics Potsdam (AIP), Institute for Physics, Rainer Arlt (1)

arxiv:1411.7790 v1 · 2014-11-28 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NIFWTIRWILQWL5MV5CX5ZE7ZF}

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	2026-05-18T01:27:24.351478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb505b4d11b2170b2facaf457ee49fc966826a623d180b31713df2120b3504fa

Aliases

arxiv: 1411.7790 · arxiv_version: 1411.7790v1 · doi: 10.48550/arxiv.1411.7790 · pith_short_12: 5NIFWTIRWILQ · pith_short_16: 5NIFWTIRWILQWL5M · pith_short_8: 5NIFWTIR

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/5NIFWTIRWILQWL5MV5CX5ZE7ZF \
  | 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: eb505b4d11b2170b2facaf457ee49fc966826a623d180b31713df2120b3504fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd61235f519941c09b195dc0cc4b64eb51d427441a4f13ce45d1bcafca81baae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-11-28T09:21:29Z",
    "title_canon_sha256": "65fb70e9b5b245178f00e92037a9dc7bc67fe6dcb8efc600646dcc3be8b6599f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7790",
    "kind": "arxiv",
    "version": 1
  }
}