Pith Number

pith:GPZJSCFI

pith:2011:GPZJSCFIJUCIA5AP7A7LRCIXQV

not attested not anchored not stored refs pending

Tight Approximation of Image Matching

Daniel Reichman, Gilad Tsur, Simon Korman

arxiv:1111.1713 v1 · 2011-11-07 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GPZJSCFIJUCIA5AP7A7LRCIXQV}

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	2026-05-18T04:09:24.824693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33f29908a84d0480740ff83eb88917856a43c694d94e8020ff927c78fe05019c

Aliases

arxiv: 1111.1713 · arxiv_version: 1111.1713v1 · doi: 10.48550/arxiv.1111.1713 · pith_short_12: GPZJSCFIJUCI · pith_short_16: GPZJSCFIJUCIA5AP · pith_short_8: GPZJSCFI

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/GPZJSCFIJUCIA5AP7A7LRCIXQV \
  | 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: 33f29908a84d0480740ff83eb88917856a43c694d94e8020ff927c78fe05019c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bf37064f9d20e0dad82a1cab2428fe0af2b2f303064ca2ad35ed691640a3ee2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-11-07T18:37:42Z",
    "title_canon_sha256": "a7a5cf26824e7dec850322e1792cd5260fa7707229a0e02dc74312d94ff49540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1713",
    "kind": "arxiv",
    "version": 1
  }
}