Pith Number

pith:Q4ZL2FTY

pith:2010:Q4ZL2FTYXN4FLLX7H3HEMBYHYD

not attested not anchored not stored refs pending

About the measurements of the hard X-ray background

A.S. Pozanenko, G.S. Bisnovatyi-Kogan

arxiv:1009.5564 v1 · 2010-09-28 · 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{Q4ZL2FTYXN4FLLX7H3HEMBYHYD}

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	2026-05-18T02:05:16.170044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8732bd1678bb7855aeff3ece460707c0e2d337cff587f774503a2d542af480e2

Aliases

arxiv: 1009.5564 · arxiv_version: 1009.5564v1 · doi: 10.48550/arxiv.1009.5564 · pith_short_12: Q4ZL2FTYXN4F · pith_short_16: Q4ZL2FTYXN4FLLX7 · pith_short_8: Q4ZL2FTY

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/Q4ZL2FTYXN4FLLX7H3HEMBYHYD \
  | 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: 8732bd1678bb7855aeff3ece460707c0e2d337cff587f774503a2d542af480e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a92ee1cbd089d99db96681873f8fcc75aec7d484c5e9d7c42f48579275f5291d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-09-28T13:32:09Z",
    "title_canon_sha256": "187b2b9adc9d6c7281020e0c1aadd2fba3b13ad1aa1d8df57996b2681d3ccb56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5564",
    "kind": "arxiv",
    "version": 1
  }
}