Pith Number

pith:YXGHY33U

pith:2023:YXGHY33UA3TPVN2VL4RS4YTYDP

not attested not anchored not stored refs pending

Optical and near-infrared spectroscopy of the black hole transient 4U 1543-47 during its 2021 ultra-luminous state

D. Mata S\'anchez, D. Steeghs, F. Vincentelli, G. Panizo-Espinar, G. Ponti, J. Casares, J. Corral-Santana, J. S\'anchez-Sierras, M.A.P. Torres, M. Armas Padilla, S. E. Motta, T. Mu\~noz-Darias, V. A. C\'uneo

arxiv:2303.08837 v2 · 2023-03-15 · astro-ph.HE · 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{YXGHY33UA3TPVN2VL4RS4YTYDP}

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	2026-07-05T06:10:35.289725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5cc7c6f7406e6fab7555f232e62781bebca9cbf54e9f8349ec464b8a95a2ae9

Aliases

arxiv: 2303.08837 · arxiv_version: 2303.08837v2 · doi: 10.48550/arxiv.2303.08837 · pith_short_12: YXGHY33UA3TP · pith_short_16: YXGHY33UA3TPVN2V · pith_short_8: YXGHY33U

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/YXGHY33UA3TPVN2VL4RS4YTYDP \
  | 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: c5cc7c6f7406e6fab7555f232e62781bebca9cbf54e9f8349ec464b8a95a2ae9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c76e0b413477fe1d0caefeef1ce4344a6236c94468cecbaedce060a022179c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-03-15T18:00:01Z",
    "title_canon_sha256": "e8492d1f9dc7d2b407eda9ad9b9760eeb1f9afaa61d272eccacdeddf71d08325"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.08837",
    "kind": "arxiv",
    "version": 2
  }
}