Pith Number

pith:PUCNUCY4

pith:2025:PUCNUCY4DQQM3HPEZ2OMRVMZEC

not attested not anchored not stored refs pending

Data span and frequency coverage requirements for robust detection and inference in PTAs: A case study with EPTA DR2

Alberto Sesana, Federico Fantoccoli, Golam Mohiuddin Shaifullah, Irene Ferranti, Mikel Falxa

arxiv:2511.21933 v1 · 2025-11-26 · astro-ph.HE · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PUCNUCY4DQQM3HPEZ2OMRVMZEC}

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	2026-05-27T14:06:39.147407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d04da0b1c1c20cd9de4ce9cc8d599208abd7e01416444ce2cc39905f3d19497

Aliases

arxiv: 2511.21933 · arxiv_version: 2511.21933v1 · doi: 10.48550/arxiv.2511.21933 · pith_short_12: PUCNUCY4DQQM · pith_short_16: PUCNUCY4DQQM3HPE · pith_short_8: PUCNUCY4

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/PUCNUCY4DQQM3HPEZ2OMRVMZEC \
  | 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: 7d04da0b1c1c20cd9de4ce9cc8d599208abd7e01416444ce2cc39905f3d19497

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99fb084edac325505091263377b9adf524ec24a62bff7fc72a6344ef318dcdeb",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-11-26T21:45:19Z",
    "title_canon_sha256": "550637782bb0be78eb2f265fbc608ac23a7806f159822662f05e1d3c92fc23c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.21933",
    "kind": "arxiv",
    "version": 1
  }
}