Pith Number

pith:FNDG3EVJ

pith:2013:FNDG3EVJHKFZAP4LPBKVLTXCYA

not attested not anchored not stored refs pending

Suryakala-Nusantara: Documenting Indonesian Sundials

Rhorom Priyatikanto

arxiv:1312.2742 v1 · 2013-12-10 · physics.pop-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNDG3EVJHKFZAP4LPBKVLTXCYA}

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	2026-05-18T03:05:08.922394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b466d92a93a8b903f8b785555cee2c038ac89250dd7bc04db119d190759ec7d

Aliases

arxiv: 1312.2742 · arxiv_version: 1312.2742v1 · doi: 10.48550/arxiv.1312.2742 · pith_short_12: FNDG3EVJHKFZ · pith_short_16: FNDG3EVJHKFZAP4L · pith_short_8: FNDG3EVJ

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/FNDG3EVJHKFZAP4LPBKVLTXCYA \
  | 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: 2b466d92a93a8b903f8b785555cee2c038ac89250dd7bc04db119d190759ec7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eccc9332a37a1cd6bb2e0729fc80c549c12133cca4b767bab9745da0f60c892",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2013-12-10T10:18:31Z",
    "title_canon_sha256": "2f8012e9accef57ac0bf25777a627e4f042462169c1192ffc6260994bd5e06cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2742",
    "kind": "arxiv",
    "version": 1
  }
}