Pith Number

pith:FAFYYKSC

pith:2019:FAFYYKSCDZF4WTXGTLRV2GOGAI

not attested not anchored not stored refs pending

DiffQue: Estimating Relative Difficulty of Questions in Community Question Answering Services

Adesh Pandey, Deepak Thukral, Rishabh Gupta, Tanmoy Chakraborty, Vikram Goyal

arxiv:1906.00145 v1 · 2019-06-01 · cs.LG · cs.SI · 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{FAFYYKSCDZF4WTXGTLRV2GOGAI}

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	2026-05-17T23:44:28.006450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

280b8c2a421e4bcb4ee69ae35d19c60233fbf3753019bbdb8aa2d0af6ca941ab

Aliases

arxiv: 1906.00145 · arxiv_version: 1906.00145v1 · doi: 10.48550/arxiv.1906.00145 · pith_short_12: FAFYYKSCDZF4 · pith_short_16: FAFYYKSCDZF4WTXG · pith_short_8: FAFYYKSC

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/FAFYYKSCDZF4WTXGTLRV2GOGAI \
  | 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: 280b8c2a421e4bcb4ee69ae35d19c60233fbf3753019bbdb8aa2d0af6ca941ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1391470b695054b64b4f867434bc6fbcd8a3a5f7133aa5658aa6f206a3680ff0",
    "cross_cats_sorted": [
      "cs.SI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-01T03:40:25Z",
    "title_canon_sha256": "b44d7781fad7e811f8d75135340263d8fba1c416e2e393a3b1a364da1ac1c3b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00145",
    "kind": "arxiv",
    "version": 1
  }
}