Pith Number

pith:QYEQ4LO4

pith:2019:QYEQ4LO4VLAJUKEO2CBXSHLCYS

not attested not anchored not stored refs pending

MUSE library of stellar spectra

Alessandro Pizzella, Elena Dalla Bonta, Enrico M. Corsini, Fernando Selman, Lodovico Coccato, Lorenzo Morelli, Mark J. Neeser, Valentin D. Ivanov

arxiv:1908.02717 v1 · 2019-08-07 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYEQ4LO4VLAJUKEO2CBXSHLCYS}

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	2026-07-05T00:03:51.347172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86090e2ddcaac09a288ed083791d62c4bc1a5e6cd6b0806f3437cca893d258d7

Aliases

arxiv: 1908.02717 · arxiv_version: 1908.02717v1 · doi: 10.48550/arxiv.1908.02717 · pith_short_12: QYEQ4LO4VLAJ · pith_short_16: QYEQ4LO4VLAJUKEO · pith_short_8: QYEQ4LO4

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/QYEQ4LO4VLAJUKEO2CBXSHLCYS \
  | 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: 86090e2ddcaac09a288ed083791d62c4bc1a5e6cd6b0806f3437cca893d258d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d4b6522ecb3c7e60c71a24ff8e5b36cd9cd4bd538d4cebb628f9c16abec47ed",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-07T16:39:51Z",
    "title_canon_sha256": "d9cb7306acc272f4ebb2d95ad0e62cfb5ddbd3a90012f34a207ae92f74cccc52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02717",
    "kind": "arxiv",
    "version": 1
  }
}