Pith Number

pith:WFTKYFEU

pith:2015:WFTKYFEU3XITKW2SPXM5ZZBYYH

not attested not anchored not stored refs pending

Data compression for local correlation tracking of solar granulation

Aaron C. Birch, Bj\"orn L\"optien, Jesper Schou, Laurent Gizon, Tom L. Duvall Jr.

arxiv:1512.03243 v1 · 2015-12-10 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFTKYFEU3XITKW2SPXM5ZZBYYH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:20:32.782266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b166ac1494ddd1355b527dd9dce438c1c90ce086a5f0384ecd8ce00fdc4f1fd5

Aliases

arxiv: 1512.03243 · arxiv_version: 1512.03243v1 · doi: 10.48550/arxiv.1512.03243 · pith_short_12: WFTKYFEU3XIT · pith_short_16: WFTKYFEU3XITKW2S · pith_short_8: WFTKYFEU

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/WFTKYFEU3XITKW2SPXM5ZZBYYH \
  | 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: b166ac1494ddd1355b527dd9dce438c1c90ce086a5f0384ecd8ce00fdc4f1fd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "444883ec9ffe6aa7d44bad2b2f6d3c8d0f54e440c21bfaa542d8ab1030b69e98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-10T13:16:06Z",
    "title_canon_sha256": "d04e93983b8e84c6087ea146ea3fd83664366efba776a4e2ee3220d7c4615208"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03243",
    "kind": "arxiv",
    "version": 1
  }
}