Pith Number

pith:RIQQDWDE

pith:2021:RIQQDWDEBNBR2ZIKL27F5CEAI6

not attested not anchored not stored refs pending

Semantic similarity metrics for learned image registration

Aasa Feragen, Oswin Krause, Steffen Czolbe

arxiv:2104.10051 v1 · 2021-04-20 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIQQDWDEBNBR2ZIKL27F5CEAI6}

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	2026-07-05T02:33:39.528740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a2101d8640b431d650a5ebe5e888047a789d62face819a79d058940b33a24e5

Aliases

arxiv: 2104.10051 · arxiv_version: 2104.10051v1 · doi: 10.48550/arxiv.2104.10051 · pith_short_12: RIQQDWDEBNBR · pith_short_16: RIQQDWDEBNBR2ZIK · pith_short_8: RIQQDWDE

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/RIQQDWDEBNBR2ZIKL27F5CEAI6 \
  | 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: 8a2101d8640b431d650a5ebe5e888047a789d62face819a79d058940b33a24e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03358b8d8db68e5ead85f6f8bd0c393218e40b85b92bbbe1b6e0a2ccd57138aa",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-04-20T15:23:58Z",
    "title_canon_sha256": "1e5743e5f273c65bd12eabc8ef60966627acc5c29bb2faeb7533ef76416be297"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.10051",
    "kind": "arxiv",
    "version": 1
  }
}