Pith Number

pith:AXJBXTAN

pith:2021:AXJBXTANOGP3CW7CFCNRPQWUGM

not attested not anchored not stored refs pending

New X-ray observations of the hot subdwarf binary HD49798 / RXJ0648.0-4418

A. Tiengo, F. Pintore, I. Pelisoli, M. Rigoselli, N. La Palombara, P. Esposito, S. Geier, S. Mereghetti, T. Rauch, V. Schaffenroth

arxiv:2104.03867 v1 · 2021-04-08 · astro-ph.SR · 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{AXJBXTANOGP3CW7CFCNRPQWUGM}

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	2026-07-05T02:33:33.110089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05d21bcc0d719fb15be2289b17c2d43321ea35bc9daf1efd514246a7d09d609c

Aliases

arxiv: 2104.03867 · arxiv_version: 2104.03867v1 · doi: 10.48550/arxiv.2104.03867 · pith_short_12: AXJBXTANOGP3 · pith_short_16: AXJBXTANOGP3CW7C · pith_short_8: AXJBXTAN

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/AXJBXTANOGP3CW7CFCNRPQWUGM \
  | 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: 05d21bcc0d719fb15be2289b17c2d43321ea35bc9daf1efd514246a7d09d609c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02ad9862a53e4db2cfe5799eed1205ad7d4528d6740071893961d181c6784076",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-04-08T16:22:13Z",
    "title_canon_sha256": "9a66d5f423eaca56683b4deaf5dd07c2b85675e84932b77cbd2a4a42d0edac39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03867",
    "kind": "arxiv",
    "version": 1
  }
}