Pith Number

pith:KFNJF5JO

pith:2024:KFNJF5JOWOZL724YO3M4RUCCJS

not attested not anchored not stored refs pending

Optical spectroscopic and photometric classification of the X-ray transient EP240309a (EP J115415.8-501810) as an intermediate polar

Carel van Gend, David A. H. Buckley, Egan Loubser, Hitesh Gajjar, H. L. Worters, I.M. Monageng, Kathryn Rosie, Keegan Titus, Moloko Hlakola, N. Erasmus, Okwudili D. Egbo, Philip A. Charles, R. P. M. Julie, S. Scaringi, Stephen. B. Potter, Sunil Chandra

arxiv:2405.01996 v1 · 2024-05-03 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KFNJF5JOWOZL724YO3M4RUCCJS}

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	2026-07-05T08:15:05.453810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

515a92f52eb3b2bfeb9876d9c8d0424c90eca0dec2d7969562d85b912c36f55e

Aliases

arxiv: 2405.01996 · arxiv_version: 2405.01996v1 · doi: 10.48550/arxiv.2405.01996 · pith_short_12: KFNJF5JOWOZL · pith_short_16: KFNJF5JOWOZL724Y · pith_short_8: KFNJF5JO

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/KFNJF5JOWOZL724YO3M4RUCCJS \
  | 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: 515a92f52eb3b2bfeb9876d9c8d0424c90eca0dec2d7969562d85b912c36f55e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c9da3a66e36bd58f8b0c6fdea71308f93e3b8d044e76b3c059e6e9b941bf84b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2024-05-03T10:52:57Z",
    "title_canon_sha256": "419ba1a87536e5451634a36694ebd1911e10c36862415ac5a2c29b6fae39df5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.01996",
    "kind": "arxiv",
    "version": 1
  }
}