Pith Number

pith:JYLP3SQ2

pith:2016:JYLP3SQ2RBM5YHY27REBXUKPL2

not attested not anchored not stored refs pending

Fixing the shadows while moving the gnomon

Alejandro Gangui

arxiv:1604.02498 v1 · 2016-04-08 · physics.pop-ph · astro-ph.IM · physics.ed-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{JYLP3SQ2RBM5YHY27REBXUKPL2}

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	2026-05-18T01:16:38.963115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e16fdca1a8859dc1f1afc481bd14f5eb47c80e42288a960399b5974cf56df3b

Aliases

arxiv: 1604.02498 · arxiv_version: 1604.02498v1 · doi: 10.48550/arxiv.1604.02498 · pith_short_12: JYLP3SQ2RBM5 · pith_short_16: JYLP3SQ2RBM5YHY2 · pith_short_8: JYLP3SQ2

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/JYLP3SQ2RBM5YHY27REBXUKPL2 \
  | 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: 4e16fdca1a8859dc1f1afc481bd14f5eb47c80e42288a960399b5974cf56df3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d5620b5d363c1f2189ecc7e9f21f040d4006925c90605002a2a883e67c2137",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2016-04-08T22:52:14Z",
    "title_canon_sha256": "055297a5e08cae49dc00101956c9453cf43f054ce4cb9b71935bece44ac480b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02498",
    "kind": "arxiv",
    "version": 1
  }
}