Pith Number

pith:QH434CFA

pith:2020:QH434CFA7CKB5ROFZOFOWN2QSB

not attested not anchored not stored refs pending

The X-Shooter Spectral Library (XSL): Data Release 2

A. Arentsen, A. Lan\c{c}on, Ana\"is Gonneau, A. Vazdekis, J. Falc\'on-Barroso, K. Verro, M. Dries, M. Lyubenova, P. Prugniel, P. R. T. Coelho, P. S\'anchez-Bl\'azquez, R. F. Peletier, S. C. Trager, Y. -P. Chen

arxiv:2001.03080 v1 · 2020-01-09 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QH434CFA7CKB5ROFZOFOWN2QSB}

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	2026-07-05T00:43:45.337526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f9be08a0f8941ec5c5cb8aeb3750905bbda120556c4baaf20fe11085703b59

Aliases

arxiv: 2001.03080 · arxiv_version: 2001.03080v1 · doi: 10.48550/arxiv.2001.03080 · pith_short_12: QH434CFA7CKB · pith_short_16: QH434CFA7CKB5ROF · pith_short_8: QH434CFA

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/QH434CFA7CKB5ROFZOFOWN2QSB \
  | 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: 81f9be08a0f8941ec5c5cb8aeb3750905bbda120556c4baaf20fe11085703b59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18412b68e5b1ba6857702384b295a77009f86e55dc6199bcd8a284ca8cdc832c",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-01-09T16:19:34Z",
    "title_canon_sha256": "fb107fd39820a8cb4383cff500b2181dd89c9edbeabf1d516d213b2c4ff9838f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.03080",
    "kind": "arxiv",
    "version": 1
  }
}