Pith Number

pith:6DIJBRJR

pith:2011:6DIJBRJR5V3DXRKSMC3LAZX4AP

not attested not anchored not stored refs pending

Noncomputable functions in the Blum-Shub-Smale model

CUNY), Ken Kramer (Queens College & Graduate Center, Russell Miller (Queens College & Graduate Center, Wesley Calvert (Southern Illinois University)

arxiv:1105.1380 v2 · 2011-05-06 · cs.LO · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6DIJBRJR5V3DXRKSMC3LAZX4AP}

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	2026-05-18T01:37:39.504502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0d090c531ed763bc55260b6b066fc03dd53a2f285b3711bc2e9479dfae83df2

Aliases

arxiv: 1105.1380 · arxiv_version: 1105.1380v2 · doi: 10.48550/arxiv.1105.1380 · pith_short_12: 6DIJBRJR5V3D · pith_short_16: 6DIJBRJR5V3DXRKS · pith_short_8: 6DIJBRJR

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/6DIJBRJR5V3DXRKSMC3LAZX4AP \
  | 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: f0d090c531ed763bc55260b6b066fc03dd53a2f285b3711bc2e9479dfae83df2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f740953c975c7fd2a5926c4e4fd9c1eecc53de72fcf7feb0d862bbf0c455e26",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-05-06T20:13:24Z",
    "title_canon_sha256": "40fe706b170c200500b9958f6ba654f2ec54ce3b4354a38ecf787d33414b30a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1380",
    "kind": "arxiv",
    "version": 2
  }
}