Pith Number

pith:V2QKK64V

pith:2009:V2QKK64VVCPAVS23NBZTNBMBC5

not attested not anchored not stored refs pending

Unveiling cosmic X-ray/gamma-ray sources from their scattering screen

Jonathan E. Grindlay

arxiv:0912.5534 v1 · 2009-12-30 · 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{V2QKK64VVCPAVS23NBZTNBMBC5}

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	2026-05-18T04:37:33.267341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aea0a57b95a89e0acb5b6873368581175b62efc7ad71f7ce332f12a381718941

Aliases

arxiv: 0912.5534 · arxiv_version: 0912.5534v1 · doi: 10.48550/arxiv.0912.5534 · pith_short_12: V2QKK64VVCPA · pith_short_16: V2QKK64VVCPAVS23 · pith_short_8: V2QKK64V

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/V2QKK64VVCPAVS23NBZTNBMBC5 \
  | 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: aea0a57b95a89e0acb5b6873368581175b62efc7ad71f7ce332f12a381718941

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a12bda71d2fb798b551b2435eddbe63fd893268b922cdec3d6664c103dd6caf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-30T20:25:04Z",
    "title_canon_sha256": "2117e597b07bb83d0593bd4b12e3ac7ddbc00d06e66ef35a2596d9e7a55dbb87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.5534",
    "kind": "arxiv",
    "version": 1
  }
}