Pith Number

pith:IXUC6YNF

pith:2021:IXUC6YNFIVVR7VQAZPFDR3KCLT

not attested not anchored not stored refs pending

Inside Out Visual Place Recognition

Marcel Worring, Nanne van Noord, Sarah Ibrahimi, Tim Alpherts

arxiv:2111.13546 v1 · 2021-11-26 · 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{IXUC6YNFIVVR7VQAZPFDR3KCLT}

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	2026-07-05T03:35:22.375486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45e82f61a5456b1fd600cbca38ed425ce170367e6bd14505a6aba93fa41e6acf

Aliases

arxiv: 2111.13546 · arxiv_version: 2111.13546v1 · doi: 10.48550/arxiv.2111.13546 · pith_short_12: IXUC6YNFIVVR · pith_short_16: IXUC6YNFIVVR7VQA · pith_short_8: IXUC6YNF

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/IXUC6YNFIVVR7VQAZPFDR3KCLT \
  | 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: 45e82f61a5456b1fd600cbca38ed425ce170367e6bd14505a6aba93fa41e6acf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ceb0bebd7dace54d0979c64a347b797ed11cc12946dfde5e82975e03afc4f2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-26T15:31:27Z",
    "title_canon_sha256": "c59775ab4cd4cfde377546facaf9f812394a2d2a6f2c6aed85e97efbaf1a87c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13546",
    "kind": "arxiv",
    "version": 1
  }
}