Pith Number

pith:BLC2L3RR

pith:2017:BLC2L3RROWCF5OMJFZRXTD4QMU

not attested not anchored not stored refs pending

Optimal matched filter in the low-number count Poisson noise regime and implications for X-ray source detection

Barak Zackay, Eran O. Ofek

arxiv:1709.01524 v1 · 2017-09-05 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLC2L3RROWCF5OMJFZRXTD4QMU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:18:53.408080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ac5a5ee3175845eb9892e63798f90653a7b539147b35eda0c67a81068bd61eb

Aliases

arxiv: 1709.01524 · arxiv_version: 1709.01524v1 · doi: 10.48550/arxiv.1709.01524 · pith_short_12: BLC2L3RROWCF · pith_short_16: BLC2L3RROWCF5OMJ · pith_short_8: BLC2L3RR

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/BLC2L3RROWCF5OMJFZRXTD4QMU \
  | 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: 0ac5a5ee3175845eb9892e63798f90653a7b539147b35eda0c67a81068bd61eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64e8a07f4650f645ec2908f98205d7ffbd21c383d6560f93f0fae256f897983e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-09-05T18:00:09Z",
    "title_canon_sha256": "9b2a388677d2905280b5cd285f01cf720a3b8a983042547f39b77efbfe28273c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01524",
    "kind": "arxiv",
    "version": 1
  }
}