Pith Number

pith:4YRYPTSG

pith:2015:4YRYPTSGZWB67GKH6I7ESQO2TV

not attested not anchored not stored refs pending

Active Region Emergence & Remote Flares

Brian T. Welsch, Yixing Fu

arxiv:1504.06633 v3 · 2015-04-24 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YRYPTSGZWB67GKH6I7ESQO2TV}

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	2026-05-18T01:12:43.471535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62387ce46cd83ef9947f23e4941da9d53f42e97147d4916fc3ee445a9c604fe

Aliases

arxiv: 1504.06633 · arxiv_version: 1504.06633v3 · doi: 10.48550/arxiv.1504.06633 · pith_short_12: 4YRYPTSGZWB6 · pith_short_16: 4YRYPTSGZWB67GKH · pith_short_8: 4YRYPTSG

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/4YRYPTSGZWB67GKH6I7ESQO2TV \
  | 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: e62387ce46cd83ef9947f23e4941da9d53f42e97147d4916fc3ee445a9c604fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48d32770652a01c21df034614a647fcc38a869d03fb497605c223f415cfd6730",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-24T20:14:40Z",
    "title_canon_sha256": "3bd83e85150cfa85b50ddf645ba516d8cb94eaeebb9d91f7b1f64c422966faa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06633",
    "kind": "arxiv",
    "version": 3
  }
}