Pith Number

pith:K2IOAUVK

pith:2015:K2IOAUVKMNHS2UYR6WB23OHUXB

not attested not anchored not stored refs pending

The Extreme Ultraviolet and X-Ray Sun in Time: High-Energy Evolutionary Tracks of a Solar-Like Star

Colin P. Johnstone, Helmut Lammer, Lin Tu, Manuel G\"udel

arxiv:1504.04546 v1 · 2015-04-17 · 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{K2IOAUVKMNHS2UYR6WB23OHUXB}

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	2026-05-18T02:03:32.581062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5690e052aa634f2d5311f583adb8f4b86870d15d46880d2f450ee9394f078e31

Aliases

arxiv: 1504.04546 · arxiv_version: 1504.04546v1 · doi: 10.48550/arxiv.1504.04546 · pith_short_12: K2IOAUVKMNHS · pith_short_16: K2IOAUVKMNHS2UYR · pith_short_8: K2IOAUVK

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/K2IOAUVKMNHS2UYR6WB23OHUXB \
  | 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: 5690e052aa634f2d5311f583adb8f4b86870d15d46880d2f450ee9394f078e31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d08366aa18a37e5ba2d9a94e67c7a0607af348fe2586c889ff41486f55541e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-17T15:43:51Z",
    "title_canon_sha256": "29d3659f16be60bd702b38a7efb2f9dc9a0e385c493a2568f3669face31f5412"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04546",
    "kind": "arxiv",
    "version": 1
  }
}