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Pith Number

pith:D6C7TRFF

pith:2009:D6C7TRFFVNBUDAHEUE2KQUKL4X
not attested not anchored not stored refs pending

The Core-Cusp Problem

W.J.G. de Blok

arxiv:0910.3538 v1 · 2009-10-19 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{D6C7TRFFVNBUDAHEUE2KQUKL4X}

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.

Cited by

12 papers in Pith

Receipt and verification
First computed 2026-05-18T02:11:14.291364Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1f85f9c4a5ab434180e4a134a8514be5d3753eae3537953ccbc610a7a74701de

Aliases

arxiv: 0910.3538 · arxiv_version: 0910.3538v1 · doi: 10.48550/arxiv.0910.3538 · pith_short_12: D6C7TRFFVNBU · pith_short_16: D6C7TRFFVNBUDAHE · pith_short_8: D6C7TRFF
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/D6C7TRFFVNBUDAHEUE2KQUKL4X \
  | 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: 1f85f9c4a5ab434180e4a134a8514be5d3753eae3537953ccbc610a7a74701de
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "fff10790ca4e6b99475adcb84f907378dd3978a7e7c2b10d8a92bb4e5c0df8f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-19T12:04:55Z",
    "title_canon_sha256": "ad64668fec0764fef14f5f4877b50f69bd611b2679876d108a9b4a4539545055"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3538",
    "kind": "arxiv",
    "version": 1
  }
}