Pith Number

pith:JRFQXIR2

pith:2015:JRFQXIR263FJDULPWMD62EGJ3B

not attested not anchored not stored refs pending

Doppler Imaging of LQ Hya for 1998-2002

E.M. Cole, I. Ilyin, M. J. K\"apyl\"a, N. Piskunov, O. Kochukhov, T. Hackman

arxiv:1504.03673 v1 · 2015-04-14 · 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{JRFQXIR263FJDULPWMD62EGJ3B}

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	2026-05-18T01:33:43.547375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c4b0ba23af6ca91d16fb307ed10c9d8407a15552497a9f1ebda4dc3fe33ac83

Aliases

arxiv: 1504.03673 · arxiv_version: 1504.03673v1 · doi: 10.48550/arxiv.1504.03673 · pith_short_12: JRFQXIR263FJ · pith_short_16: JRFQXIR263FJDULP · pith_short_8: JRFQXIR2

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/JRFQXIR263FJDULPWMD62EGJ3B \
  | 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: 4c4b0ba23af6ca91d16fb307ed10c9d8407a15552497a9f1ebda4dc3fe33ac83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a52c4dc569bace34d41cae484192260d96813c038c28c213535c07a0dd8f743",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-14T19:53:33Z",
    "title_canon_sha256": "3d3a687ea62c5f19f850b9bab6b9ea9a8f1931ccc471ce02020e9a0723b0f9b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03673",
    "kind": "arxiv",
    "version": 1
  }
}