Pith Number

pith:QKAQNR5O

pith:2015:QKAQNR5OX7IJR74PIBK6WDMD5O

not attested not anchored not stored refs pending

Learning the Matching Function

Christian H\"ane, Marc Pollefeys, \v{L}ubor Ladick\'y

arxiv:1502.00652 v1 · 2015-02-02 · 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{QKAQNR5OX7IJR74PIBK6WDMD5O}

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	2026-05-18T02:28:04.654981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

828106c7aebfd098ff8f4055eb0d83eb8e6e0bd17486efa809c10b9d4e07bf7a

Aliases

arxiv: 1502.00652 · arxiv_version: 1502.00652v1 · doi: 10.48550/arxiv.1502.00652 · pith_short_12: QKAQNR5OX7IJ · pith_short_16: QKAQNR5OX7IJR74P · pith_short_8: QKAQNR5O

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/QKAQNR5OX7IJR74PIBK6WDMD5O \
  | 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: 828106c7aebfd098ff8f4055eb0d83eb8e6e0bd17486efa809c10b9d4e07bf7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41dfb6372c03a19dad4805541c504d5d34b85b4f7d537d2fc4d60cf02b3e0c0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-02-02T21:20:43Z",
    "title_canon_sha256": "ab6b718fe011fac66b48f80ddd2b7f282429a4c840876db613915de954ed2a3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00652",
    "kind": "arxiv",
    "version": 1
  }
}