Pith Number

pith:QEQI4X2D

pith:2016:QEQI4X2DSTW6FGZ5BUJALPCYRF

not attested not anchored not stored refs pending

The IDSA and the homogeneous sphere: Issues and possible improvements

J\'er\^ome Michaud

arxiv:1606.04020 v1 · 2016-06-13 · math.NA · astro-ph.SR · physics.comp-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{QEQI4X2DSTW6FGZ5BUJALPCYRF}

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	2026-05-18T01:12:32.365305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81208e5f4394ede29b3d0d1205bc58894bd90495de82f3f0868b924c2def3a56

Aliases

arxiv: 1606.04020 · arxiv_version: 1606.04020v1 · doi: 10.48550/arxiv.1606.04020 · pith_short_12: QEQI4X2DSTW6 · pith_short_16: QEQI4X2DSTW6FGZ5 · pith_short_8: QEQI4X2D

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/QEQI4X2DSTW6FGZ5BUJALPCYRF \
  | 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: 81208e5f4394ede29b3d0d1205bc58894bd90495de82f3f0868b924c2def3a56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5114c64c126b4c4cfbd1cbd79e6fdc16f57b29240e2fd792ccff14f16aee45b6",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-06-13T16:19:39Z",
    "title_canon_sha256": "7330d0e4c97b8f4a8285a21847cd1d07a4ec6c756e83c002a45d67d1b525c10f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.04020",
    "kind": "arxiv",
    "version": 1
  }
}