pith. sign in
Pith Number

pith:RCCKX236

pith:2011:RCCKX236CHJKKIWDP3MMOKGUYY
not attested not anchored not stored refs pending

The Super-linear Slope of the Spatially-Resolved Star Formation Law in NGC 3521 and NGC 5194 (M51a)

Daniela Calzetti (UMass), Guilin Liu (UMass), Jin Koda (Stony Brook), Masayuki Fukuhara (U of Tokyo), NAO of Japan), Rieko Momose (U of Tokyo

arxiv:1104.4122 v1 · 2011-04-20 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{RCCKX236CHJKKIWDP3MMOKGUYY}

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 2026-05-18T02:02:17.171079Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8884abeb7e11d2a522c37ed8c728d4c63b14828ae55b92a98a98cf42604da5d6

Aliases

arxiv: 1104.4122 · arxiv_version: 1104.4122v1 · doi: 10.48550/arxiv.1104.4122 · pith_short_12: RCCKX236CHJK · pith_short_16: RCCKX236CHJKKIWD · pith_short_8: RCCKX236
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/RCCKX236CHJKKIWDP3MMOKGUYY \
  | 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: 8884abeb7e11d2a522c37ed8c728d4c63b14828ae55b92a98a98cf42604da5d6
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "5ad50320b89a73c26f644f70021b101c390a7222e2de9d6f941c835e248fb0c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-20T20:01:24Z",
    "title_canon_sha256": "7abaa36d68fe0457b972264953ef58df8183092c79aa1eed3fa8a9024bb8014b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4122",
    "kind": "arxiv",
    "version": 1
  }
}