Pith Number

pith:GTYOBO5Q

pith:2026:GTYOBO5QMFKJSQVJC3QQGRMU2I

not attested not anchored not stored refs pending

Transient and Variable Ultra-luminous X-ray Sources in NGC 4552

A. S. Sreya, E. Sreeraj, R. Arun, Riya Elza Mathew, V. Jithesh

arxiv:2607.07568 v1 · 2026-07-08 · 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{GTYOBO5QMFKJSQVJC3QQGRMU2I}

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	2026-07-09T01:20:29.759537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34f0e0bbb061549942a916e1034594d21dc72f7f357c1b2bf9f8b0851a8045d4

Aliases

arxiv: 2607.07568 · arxiv_version: 2607.07568v1 · doi: 10.48550/arxiv.2607.07568 · pith_short_12: GTYOBO5QMFKJ · pith_short_16: GTYOBO5QMFKJSQVJ · pith_short_8: GTYOBO5Q

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/GTYOBO5QMFKJSQVJC3QQGRMU2I \
  | 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: 34f0e0bbb061549942a916e1034594d21dc72f7f357c1b2bf9f8b0851a8045d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aa2f7d7aecba650a19ef40eca70faecf8b3620f74f7dd05e5576cd4b0587551",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-08T15:57:44Z",
    "title_canon_sha256": "14054437b1db2f4a3eec7fae9b5ee89ecec72267e06d5b538e27b01eddb89d67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07568",
    "kind": "arxiv",
    "version": 1
  }
}