Pith Number

pith:WST2K3NP

pith:2018:WST2K3NP7DW56JQR4MRDL3BVAV

not attested not anchored not stored refs pending

Discovery of 3 s pulsations from the Brightest Hard X-ray Source in M31

(2) Anton Pannekoek Institute for Astronomy, (3) Scuola Universitaria Superiore IUSS, 4, (4) INAF--Istituto di Astrofisica Spaziale e Fisica Cosmica - Milano, 5), (5) INFN--Istituto Nazionale di Fisica Nucleare, Alessandro Papitto (1), Andrea De Luca (4) ((1) INAF--Osservatorio Astronomico di Roma, Andrea Tiengo (3, Gian Luca Israel (1), Guillermo A. Rodr\'iguez Castillo (1), Luigi Stella (1), Paolo Esposito (2), Sezione di Pavia), University of Amsterdam

arxiv:1804.10858 v2 · 2018-04-29 · 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{WST2K3NP7DW56JQR4MRDL3BVAV}

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	2026-05-18T00:03:06.064488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4a7a56daff8eddf2611e32235ec35056498d6e4ecd5dd12ac13bdb2d7def8de

Aliases

arxiv: 1804.10858 · arxiv_version: 1804.10858v2 · doi: 10.48550/arxiv.1804.10858 · pith_short_12: WST2K3NP7DW5 · pith_short_16: WST2K3NP7DW56JQR · pith_short_8: WST2K3NP

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/WST2K3NP7DW56JQR4MRDL3BVAV \
  | 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: b4a7a56daff8eddf2611e32235ec35056498d6e4ecd5dd12ac13bdb2d7def8de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c403483d8f82c4bbec2204237b4e7f3fc6a1d44e4345a33dad28fb19e1de23d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-04-29T01:22:09Z",
    "title_canon_sha256": "ccadc578ed8e83e948e01319033cca1de08617cf8b7375b19963ae269b6c1d6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10858",
    "kind": "arxiv",
    "version": 2
  }
}