Pith Number

pith:P4NHOQHY

pith:2004:P4NHOQHY3P2WC6HN5CABND7BEC

not attested not anchored not stored refs pending

A2255: the First Detection of Filamentary Polarized Emission in a Radio Halo

Daniele Dallacasa, Federica Govoni, Gabriele Giovannini, Greg Taylor, Luigina Feretti, Matteo Murgia

arxiv:astro-ph/0411720 v1 · 2004-11-26 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4NHOQHY3P2WC6HN5CABND7BEC}

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	2026-07-04T16:45:18.392869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1a7740f8dbf56178ede880168fe1209e75a76af0143e03a26e6eb54323e413

Aliases

arxiv: astro-ph/0411720 · arxiv_version: astro-ph/0411720v1 · doi: 10.48550/arxiv.astro-ph/0411720 · pith_short_12: P4NHOQHY3P2W · pith_short_16: P4NHOQHY3P2WC6HN · pith_short_8: P4NHOQHY

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/P4NHOQHY3P2WC6HN5CABND7BEC \
  | 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: 7f1a7740f8dbf56178ede880168fe1209e75a76af0143e03a26e6eb54323e413

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aeecfaea2cf3c099b80f0335ed8ad701d156900ecf28bfdd7339552b66d489c4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-26T14:47:30Z",
    "title_canon_sha256": "4403fd1aef9eebbe563bc94f90ef1b4f767afcc415499dbd36750c9f936f24f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411720",
    "kind": "arxiv",
    "version": 1
  }
}