Pith Number

pith:VWIFFAGG

pith:2019:VWIFFAGGVDXSTCQ4BPRRJ3MH4A

not attested not anchored not stored refs pending

Crust cooling of the neutron star in Aql X-1: Different depth and magnitude of shallow heating during similar accretion outbursts

A.S. Parikh, D. Altamirano, D. Page, E.M. Cackett, J. Homan, J.M. Miller, L.S. Ootes, M. Linares, N. Degenaar, R. Wijnands

arxiv:1907.07205 v1 · 2019-07-16 · 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{VWIFFAGGVDXSTCQ4BPRRJ3MH4A}

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	2026-05-17T23:39:42.708166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad905280c6a8ef298a1c0be314ed87e015866ddf546cbcf96720b8d20356471d

Aliases

arxiv: 1907.07205 · arxiv_version: 1907.07205v1 · doi: 10.48550/arxiv.1907.07205 · pith_short_12: VWIFFAGGVDXS · pith_short_16: VWIFFAGGVDXSTCQ4 · pith_short_8: VWIFFAGG

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/VWIFFAGGVDXSTCQ4BPRRJ3MH4A \
  | 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: ad905280c6a8ef298a1c0be314ed87e015866ddf546cbcf96720b8d20356471d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a71b8cb5c80491661cf07093a67204e97b750f8b0494b337c79ca527a400a7f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-07-16T18:25:37Z",
    "title_canon_sha256": "0165d508737a074ed40daca9207d75aa0c1bc6208271a9bfb2abc8df5df36620"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07205",
    "kind": "arxiv",
    "version": 1
  }
}