Pith Number

pith:3MQ7ATGE

pith:2026:3MQ7ATGE7SZJPNFQSOOIYB6JZI

not attested not anchored not stored refs pending

Neutron Star Mass-Radius Constraints for EXO 0748$-$676 from 2008-2025 Quiescent X-ray Spectra

Ang Li, Guobao Zhang, Mingyang Wang

arxiv:2606.23466 v1 · 2026-06-22 · astro-ph.HE · astro-ph.SR · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3MQ7ATGE7SZJPNFQSOOIYB6JZI}

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	2026-06-23T03:14:20.656058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db21f04cc4fcb297b4b0939c8c07c9ca00bbcf7b427cc090ef88ff96b8220fec

Aliases

arxiv: 2606.23466 · arxiv_version: 2606.23466v1 · doi: 10.48550/arxiv.2606.23466 · pith_short_12: 3MQ7ATGE7SZJ · pith_short_16: 3MQ7ATGE7SZJPNFQ · pith_short_8: 3MQ7ATGE

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/3MQ7ATGE7SZJPNFQSOOIYB6JZI \
  | 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: db21f04cc4fcb297b4b0939c8c07c9ca00bbcf7b427cc090ef88ff96b8220fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3094779ad5cfea9c4ef2f4f85845e812bdde0155e0f87367e464f35d7a23fc0",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "nucl-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-22T15:15:04Z",
    "title_canon_sha256": "401d31e10fb5f7de0d917664c083fed8acfdebcabe5d4c2b01a07be13d281169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.23466",
    "kind": "arxiv",
    "version": 1
  }
}