Pith Number

pith:V7MHR7RE

pith:2017:V7MHR7REFBUFYN5ODLYZH2AZDI

not attested not anchored not stored refs pending

New sunspots and aurorae in the historical Chinese text corpus? Comments on uncritical digital search applications

D.L. Neuhaeuser, J. Chapman, R. Neuhaeuser

arxiv:1711.05132 v2 · 2017-11-14 · astro-ph.SR · physics.hist-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{V7MHR7REFBUFYN5ODLYZH2AZDI}

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	2026-05-18T00:29:45.245384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afd878fe2428685c37ae1af193e8191a3795bd117ed44bfec0dcf1f720b0eaed

Aliases

arxiv: 1711.05132 · arxiv_version: 1711.05132v2 · doi: 10.48550/arxiv.1711.05132 · pith_short_12: V7MHR7REFBUF · pith_short_16: V7MHR7REFBUFYN5O · pith_short_8: V7MHR7RE

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/V7MHR7REFBUFYN5ODLYZH2AZDI \
  | 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: afd878fe2428685c37ae1af193e8191a3795bd117ed44bfec0dcf1f720b0eaed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d34783d75e6fbafd0391580cc302fc99a0638189367b53c55f018971df84b24e",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-14T14:53:14Z",
    "title_canon_sha256": "bd7faeba1b82c9f439e1567f7395c5f09382e32f2f73257774c3de5cd10d376f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05132",
    "kind": "arxiv",
    "version": 2
  }
}