Pith Number

pith:6SIQ2T2B

pith:2008:6SIQ2T2BTFGM2Y64YS2TCD4NJA

not attested not anchored not stored refs pending

Imaging X-ray sources at a finite distance in coded mask instruments

I. Donnarumma, I. Lapshov, L. Pacciani, Y. Evangelista

arxiv:0807.0518 v1 · 2008-07-03 · 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{6SIQ2T2BTFGM2Y64YS2TCD4NJA}

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	2026-07-04T17:11:38.669472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4910d4f41994ccd63dcc4b5310f8d48276fdb0a4dd637f1e7feca39b8a1099e

Aliases

arxiv: 0807.0518 · arxiv_version: 0807.0518v1 · doi: 10.48550/arxiv.0807.0518 · pith_short_12: 6SIQ2T2BTFGM · pith_short_16: 6SIQ2T2BTFGM2Y64 · pith_short_8: 6SIQ2T2B

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/6SIQ2T2BTFGM2Y64YS2TCD4NJA \
  | 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: f4910d4f41994ccd63dcc4b5310f8d48276fdb0a4dd637f1e7feca39b8a1099e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c93db20c739371b42e9859224598769fa2fb423537e7350e2f6f88935fc6747",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-03T10:13:20Z",
    "title_canon_sha256": "d0a619b1dbcc83c0f9e7f2693f2867b8ed996d0d2729ce5b8a01778cb773453a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0518",
    "kind": "arxiv",
    "version": 1
  }
}