Pith Number

pith:UX35GYOY

pith:2018:UX35GYOYX4M4NDRZI5JNBXPZHF

not attested not anchored not stored refs pending

NICER Detection of Strong Photospheric Expansion during a Thermonuclear X-Ray Burst from 4U 1820-30

B. LaMarr, C. B. Markwardt, D. Chakrabarty, F. K. Lamb, G. K. Jaisawal, J. Chenevez, J. Homan, J. J. M. in 't Zand, K. C. Gendreau, L. Keek, S. Guillot, S. Mahmoodifar, T. E. Strohmayer, T. G\"uver, T. Okajima, Z. Arzoumanian

arxiv:1808.06442 v1 · 2018-08-20 · 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{UX35GYOYX4M4NDRZI5JNBXPZHF}

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	2026-05-18T00:07:44.900747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5f7d361d8bf19c68e394752d0ddf939530daac8b0c96ecd08fb9ff045b99702

Aliases

arxiv: 1808.06442 · arxiv_version: 1808.06442v1 · doi: 10.48550/arxiv.1808.06442 · pith_short_12: UX35GYOYX4M4 · pith_short_16: UX35GYOYX4M4NDRZ · pith_short_8: UX35GYOY

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/UX35GYOYX4M4NDRZI5JNBXPZHF \
  | 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: a5f7d361d8bf19c68e394752d0ddf939530daac8b0c96ecd08fb9ff045b99702

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f809c4f68bced0745151fcb0cb030e030bca4d91b3a92899292f64fb9ce43680",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-20T13:30:27Z",
    "title_canon_sha256": "943f33abf2380174dabd983faed8e6b4e29392ad8428cffcb5bedfe9fecd715a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06442",
    "kind": "arxiv",
    "version": 1
  }
}