Pith Number

pith:FQ4C6NCI

pith:2025:FQ4C6NCIUIVE7BQTI2MLQA2ZEU

not attested not anchored not stored refs pending

Unveiling the nature of donor stars of ULXs in NGC 1559

A. Akyuz, S. Allak

arxiv:2501.09974 v1 · 2025-01-17 · 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{FQ4C6NCIUIVE7BQTI2MLQA2ZEU}

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	2026-07-05T10:19:36.085583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c382f3448a22a4f86134698b80359251e34e2e146bd52b91d2b3da668352d03

Aliases

arxiv: 2501.09974 · arxiv_version: 2501.09974v1 · doi: 10.48550/arxiv.2501.09974 · pith_short_12: FQ4C6NCIUIVE · pith_short_16: FQ4C6NCIUIVE7BQT · pith_short_8: FQ4C6NCI

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/FQ4C6NCIUIVE7BQTI2MLQA2ZEU \
  | 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: 2c382f3448a22a4f86134698b80359251e34e2e146bd52b91d2b3da668352d03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58a7058e05668310fe5d475c5dd323f4260fd5d511a8f9ceedc1bd37c01e0f47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-01-17T06:31:30Z",
    "title_canon_sha256": "caaae7f3526d26aafbb326e456e43427d8198599b7794b17d896e11fbf8bfff0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09974",
    "kind": "arxiv",
    "version": 1
  }
}