Pith Number

pith:DY7I5F64

pith:2014:DY7I5F64REVSCVHSPGPTANOAAN

not attested not anchored not stored refs pending

The last sunset on mainland Europe

Jorge Mira

arxiv:1408.2161 v3 · 2014-08-09 · physics.pop-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{DY7I5F64REVSCVHSPGPTANOAAN}

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	2026-05-18T00:53:45.647070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e3e8e97dc892b2154f2799f3035c0035db0af131a6714d9d85b4b9d2252c6f9

Aliases

arxiv: 1408.2161 · arxiv_version: 1408.2161v3 · doi: 10.48550/arxiv.1408.2161 · pith_short_12: DY7I5F64REVS · pith_short_16: DY7I5F64REVSCVHS · pith_short_8: DY7I5F64

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/DY7I5F64REVSCVHSPGPTANOAAN \
  | 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: 1e3e8e97dc892b2154f2799f3035c0035db0af131a6714d9d85b4b9d2252c6f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "818df68c88c3d6e93c3331fd0d7be0a849ea8d6916bfa3c42d6cb14a347ec309",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2014-08-09T22:54:27Z",
    "title_canon_sha256": "c26c899241b567534adbaf55a9f0fea0b94ff33a80e4af81c9cb56c1d1aedae6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2161",
    "kind": "arxiv",
    "version": 3
  }
}