Pith Number

pith:QNKCSSLW

pith:2019:QNKCSSLWI5BBL4L2ZR5IPKUS6D

not attested not anchored not stored refs pending

Exquisitor: Interactive Learning at Large

Bj\"orn {\TH}\'or J\'onsson, Gylfi {\TH}\'or Gu{\dh}mundsson, Hanna Ragnarsd\'ottir, Jan Zah\'alka, Laurent Amsaleg, Marcel Worring, Omar Shahbaz Khan, Stevan Rudinac, {\TH}\'orhildur {\TH}orleiksd\'ottir

arxiv:1904.08689 v3 · 2019-04-18 · cs.MM · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNKCSSLWI5BBL4L2ZR5IPKUS6D}

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	2026-05-17T23:40:23.440755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8354294976474215f17acc7a87aa92f0f0d8e6d0f9ae9286fabfcbb8b53f62ce

Aliases

arxiv: 1904.08689 · arxiv_version: 1904.08689v3 · doi: 10.48550/arxiv.1904.08689 · pith_short_12: QNKCSSLWI5BB · pith_short_16: QNKCSSLWI5BBL4L2 · pith_short_8: QNKCSSLW

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/QNKCSSLWI5BBL4L2ZR5IPKUS6D \
  | 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: 8354294976474215f17acc7a87aa92f0f0d8e6d0f9ae9286fabfcbb8b53f62ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd86d59801fb7dedbaee91c72228414cc5c09cc0e6543d546aed0dbaf4a9593d",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2019-04-18T11:07:04Z",
    "title_canon_sha256": "7b01b076bd8b4b46a9031246e3e22121d15652d00cb6bd4b6bcfd1e25160ebed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08689",
    "kind": "arxiv",
    "version": 3
  }
}