Pith Number

pith:PKRO3IUM

pith:2021:PKRO3IUMGJPNXSUAKMGTBQLF6D

not attested not anchored not stored refs pending

Calibration of the IXPE instrument

Alda Rubini, Alessia Tortosa, Alessio Trois (for the IXPE team), Alfredo Morbidini, Antonino Tobia, Carlo Lefevre, Ettore Del Monte, Fabio Muleri, Fabrizio Amici, Francesco Maita, Francesco Santoli, Giuseppe Di Persio, John Rankin, Leandra Primicino, Luca Maiolo, Mauro Centrone, Paolo Soffitta, Pasqualino Loffredo, Primo Attin\`a, Raffaele Piazzolla, Riccardo Ferrazzoli, Sergio Di Cosimo, Sergio Fabiani, Yuri Evangelista

arxiv:2111.14511 v1 · 2021-11-29 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKRO3IUMGJPNXSUAKMGTBQLF6D}

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	2026-07-05T03:35:52.745975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aa2eda28c325edbca80530d30c165f0f12d495bb0fe1172812a47e409a745c2

Aliases

arxiv: 2111.14511 · arxiv_version: 2111.14511v1 · doi: 10.48550/arxiv.2111.14511 · pith_short_12: PKRO3IUMGJPN · pith_short_16: PKRO3IUMGJPNXSUA · pith_short_8: PKRO3IUM

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/PKRO3IUMGJPNXSUAKMGTBQLF6D \
  | 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: 7aa2eda28c325edbca80530d30c165f0f12d495bb0fe1172812a47e409a745c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6c4415d4aa5e0324d1b95ab1df9f32c19b6db8625184d16594a3146dc053a5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-29T13:05:22Z",
    "title_canon_sha256": "1413b0b7a20b4843a0a984b05bc933de3bff8bf29c741a728c86b1a02c7f6369"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.14511",
    "kind": "arxiv",
    "version": 1
  }
}