Pith Number

pith:3UB5TDMB

pith:2008:3UB5TDMBQPF7S5Y5ASKOZAIQJY

not attested not anchored not stored refs pending

A new measurement of the cosmic X-ray background

A. Abbey, A. Moretti, A.P. Beardmore, C. Guidorzi, C. Pagani, D. Burrows, G. Chincarini, G. Cusumano, G. Tagliaferri, J.E. Hill, J. Kennea, J. Nousek, J.P. Osborne, M. Ajello, M. Perri, O. Godet, S. Campana

arxiv:0811.1444 v2 · 2008-11-10 · 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{3UB5TDMBQPF7S5Y5ASKOZAIQJY}

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	2026-07-04T17:23:31.285795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd03d98d8183cbf9771d0494ec81104e1ffe57e2fb60993eec5b410514a20343

Aliases

arxiv: 0811.1444 · arxiv_version: 0811.1444v2 · doi: 10.48550/arxiv.0811.1444 · pith_short_12: 3UB5TDMBQPF7 · pith_short_16: 3UB5TDMBQPF7S5Y5 · pith_short_8: 3UB5TDMB

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/3UB5TDMBQPF7S5Y5ASKOZAIQJY \
  | 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: dd03d98d8183cbf9771d0494ec81104e1ffe57e2fb60993eec5b410514a20343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f9274ee33be02a48cd0039e5e92139dcb7031954ff1ba5994a8e8cc627d9111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-10T11:04:17Z",
    "title_canon_sha256": "a5fb27258a78e3e787f208b8eb6a79e11fbeaf4935d1f10c00fbb6abaea2af88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1444",
    "kind": "arxiv",
    "version": 2
  }
}