Pith Number

pith:NQA7PKK3

pith:2018:NQA7PKK3HG2XAQNMM67TK36N2C

not attested not anchored not stored refs pending

On Design of Problem Token Questions in Quality of Experience Surveys

Ebrahim Beyrami, Jayant Gupchup, Martin Ellis, Ross Cutler, Sam Johnson, Yasaman Hosseinkashi

arxiv:1808.06152 v1 · 2018-08-19 · stat.ME · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQA7PKK3HG2XAQNMM67TK36N2C}

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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	2026-05-18T00:05:04.525960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c01f7a95b39b57041ac67bf356fcdd0b13394ebbc3ded34be0563962d6cfc3a

Aliases

arxiv: 1808.06152 · arxiv_version: 1808.06152v1 · doi: 10.48550/arxiv.1808.06152 · pith_short_12: NQA7PKK3HG2X · pith_short_16: NQA7PKK3HG2XAQNM · pith_short_8: NQA7PKK3

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/NQA7PKK3HG2XAQNMM67TK36N2C \
  | 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: 6c01f7a95b39b57041ac67bf356fcdd0b13394ebbc3ded34be0563962d6cfc3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccca08fc4dc6050e375af970c2af9375fb8b1cdd63235b475c92ac4db3b11b40",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-08-19T02:16:40Z",
    "title_canon_sha256": "00fb5e3415dc585fcc81090b7c3be2757fa1aa0cdadb516ba0be608769f6456e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06152",
    "kind": "arxiv",
    "version": 1
  }
}