Pith Number

pith:ZWVXM7MY

pith:2020:ZWVXM7MY474OLIOOJFFSAQEY7D

not attested not anchored not stored refs pending

Device-based Image Matching with Similarity Learning by Convolutional Neural Networks that Exploit the Underlying Camera Sensor Pattern Noise

Dimka Karastoyanova, Enrique Alegre, George Azzopardi, Guru Swaroop Bennabhaktula

arxiv:2004.11443 v1 · 2020-04-23 · eess.IV · 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{ZWVXM7MY474OLIOOJFFSAQEY7D}

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	2026-07-05T00:57:54.149524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdab767d98e7f8e5a1ce494b204098f8d25aadbd7079d898d72570688af2a801

Aliases

arxiv: 2004.11443 · arxiv_version: 2004.11443v1 · doi: 10.48550/arxiv.2004.11443 · pith_short_12: ZWVXM7MY474O · pith_short_16: ZWVXM7MY474OLIOO · pith_short_8: ZWVXM7MY

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/ZWVXM7MY474OLIOOJFFSAQEY7D \
  | 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: cdab767d98e7f8e5a1ce494b204098f8d25aadbd7079d898d72570688af2a801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d46ca2a3b413d9fea722292e42a046f1e49631de60fadfeebb7cfc533371c3f5",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-04-23T20:03:40Z",
    "title_canon_sha256": "a84e5cdd5eabf6c7a4fbae24e204f527e2897be6d4d104b89435ee985d81e436"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11443",
    "kind": "arxiv",
    "version": 1
  }
}