Pith Number

pith:X5NPQ2W2

pith:2010:X5NPQ2W2MQJNTY4WVVOVGAZHA4

not attested not anchored not stored refs pending

Multi-layer study of wave propagation in sunspots

C. Beck, E. Khomenko, M. Collados, T. Felipe

arxiv:1008.4004 v1 · 2010-08-24 · 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{X5NPQ2W2MQJNTY4WVVOVGAZHA4}

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	2026-05-18T02:05:43.405260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf5af86ada6412d9e396ad5d5303270739f29ec59a64bb56bc4cf38783aa927f

Aliases

arxiv: 1008.4004 · arxiv_version: 1008.4004v1 · doi: 10.48550/arxiv.1008.4004 · pith_short_12: X5NPQ2W2MQJN · pith_short_16: X5NPQ2W2MQJNTY4W · pith_short_8: X5NPQ2W2

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/X5NPQ2W2MQJNTY4WVVOVGAZHA4 \
  | 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: bf5af86ada6412d9e396ad5d5303270739f29ec59a64bb56bc4cf38783aa927f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "458d24130a9ad9fc3061c5632b4c7c7989260d2523b5774ae9673ce3b0affcc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-24T10:20:44Z",
    "title_canon_sha256": "03a5afaec16ece9d1090853f758937751904dbd5ec7336f5a91ccad0d1f16887"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4004",
    "kind": "arxiv",
    "version": 1
  }
}