Pith Number

pith:HYRA5ATV

pith:2020:HYRA5ATVYX2QFH534DFELIKCUG

not attested not anchored not stored refs pending

High-cadence observations and variable spin behaviour of magnetar Swift J1818.0-1607 after its outburst

Aditya Parthasarathy, Alexander J. van der Horst, Andrew G. Lyne, Ben W. Stappers, Brendan O'Connor, Chryssa Kouveliotou, David Champion, Fabian Jankowski, Gregory Desvignes, Ismael Cognard, Kaustubh Rajwade, Kuo Liu, Marilyn Cruces, Michael J. Keith, Michael Kramer, Mitchell B. Mickaliger, Nataliya Porayko, Pablo Torne, Patrick Weltevrede, Ramesh Karuppusamy

arxiv:2009.03568 v1 · 2020-09-08 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HYRA5ATVYX2QFH534DFELIKCUG}

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	2026-07-05T01:42:45.246141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e220e8275c5f5029fbbe0ca45a142a1b25748b537866b52731d1bcf054fba80

Aliases

arxiv: 2009.03568 · arxiv_version: 2009.03568v1 · doi: 10.48550/arxiv.2009.03568 · pith_short_12: HYRA5ATVYX2Q · pith_short_16: HYRA5ATVYX2QFH53 · pith_short_8: HYRA5ATV

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/HYRA5ATVYX2QFH534DFELIKCUG \
  | 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: 3e220e8275c5f5029fbbe0ca45a142a1b25748b537866b52731d1bcf054fba80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f1ac5de2c769332ddeab6b6c34aceeedfed99a3f1db9963c97ef85831f3183d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-09-08T08:05:05Z",
    "title_canon_sha256": "de4745579b92fb5bfcfd868239427243cd54c71d3f70849a15475dc57ad2bbb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.03568",
    "kind": "arxiv",
    "version": 1
  }
}