Pith Number

pith:SM7TTI5O

pith:2012:SM7TTI5O6RISL47OOOHYXLJLXC

not attested not anchored not stored refs pending

Level set estimation from projection measurements: Performance guarantees and fast computation

Kalyani Krishnamurthy, Rebecca Willett, Waheed U. Bajwa

arxiv:1209.3990 v2 · 2012-09-18 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SM7TTI5O6RISL47OOOHYXLJLXC}

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	2026-05-18T00:22:07.191643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

933f39a3aef45125f3ee738f8bad2bb88171bd1e185ad1523bb31ddf2bd5ae36

Aliases

arxiv: 1209.3990 · arxiv_version: 1209.3990v2 · doi: 10.48550/arxiv.1209.3990 · pith_short_12: SM7TTI5O6RIS · pith_short_16: SM7TTI5O6RISL47O · pith_short_8: SM7TTI5O

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/SM7TTI5O6RISL47OOOHYXLJLXC \
  | 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: 933f39a3aef45125f3ee738f8bad2bb88171bd1e185ad1523bb31ddf2bd5ae36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccea47491165bf5b0436c5d585f4e0a62ca8a6da09c774f497de2bfb4b35d8f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2012-09-18T15:28:42Z",
    "title_canon_sha256": "47b055ef2bbcc6e57bcb643ebc3e8d7e9d1c4fd865295c47219a637bda8df2d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3990",
    "kind": "arxiv",
    "version": 2
  }
}