Pith Number

pith:BQQK2FBJ

pith:2021:BQQK2FBJNNKI2H5AN2YJQVKKIL

not attested not anchored not stored refs pending

Learning User's confidence for active learning

Devis Tuia, Jordi Munoz-Mari

arxiv:2104.07791 v1 · 2021-04-15 · cs.CV · cs.LG · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQQK2FBJNNKI2H5AN2YJQVKKIL}

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	2026-07-05T02:32:37.716049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c20ad14296b548d1fa06eb098554a42e9a7df09cdcd85fa5cbc957bbd0b5b0b

Aliases

arxiv: 2104.07791 · arxiv_version: 2104.07791v1 · doi: 10.48550/arxiv.2104.07791 · pith_short_12: BQQK2FBJNNKI · pith_short_16: BQQK2FBJNNKI2H5A · pith_short_8: BQQK2FBJ

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/BQQK2FBJNNKI2H5AN2YJQVKKIL \
  | 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: 0c20ad14296b548d1fa06eb098554a42e9a7df09cdcd85fa5cbc957bbd0b5b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "feb30bb9f6de096ba016e2be84acee0e3bfee2b14de00a086fd610ccfc33d6ad",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-15T21:54:27Z",
    "title_canon_sha256": "6994fbe0ceae97fe89a1c1760327f7ca432b3c63ec5ee50387d6b4cdfc1f6a9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07791",
    "kind": "arxiv",
    "version": 1
  }
}