Pith Number

pith:QPQTK2SK

pith:2013:QPQTK2SKG22SVL4J2EVG7T3DBF

not attested not anchored not stored refs pending

Polarimetry in the hard X-ray domain with INTEGRAL SPI

D. J. Clark, E. Jourdain, J. P. Roques, M. Chauvin

arxiv:1305.0802 v1 · 2013-05-03 · astro-ph.IM · 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{QPQTK2SKG22SVL4J2EVG7T3DBF}

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	2026-05-18T01:50:12.532560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e1356a4a36b52aaf89d12a6fcf6309663398171c103d97b76b4438b4d0854d

Aliases

arxiv: 1305.0802 · arxiv_version: 1305.0802v1 · doi: 10.48550/arxiv.1305.0802 · pith_short_12: QPQTK2SKG22S · pith_short_16: QPQTK2SKG22SVL4J · pith_short_8: QPQTK2SK

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/QPQTK2SKG22SVL4J2EVG7T3DBF \
  | 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: 83e1356a4a36b52aaf89d12a6fcf6309663398171c103d97b76b4438b4d0854d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9912973f4beb60436d93964c8eb434b810ae9b973500b8e192f9203d59625f25",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-05-03T18:46:47Z",
    "title_canon_sha256": "dbdf191630c6745fb0e9c576d662991fada759b7a53d8d2a193f60192d6984c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0802",
    "kind": "arxiv",
    "version": 1
  }
}