Pith Number

pith:QSZE5JFN

pith:2020:QSZE5JFNPEP7CETHG345HBUTK5

not attested not anchored not stored refs pending

MyFood: A Food Segmentation and Classification System to Aid Nutritional Monitoring

Charles N. C. Freitas, Filipe R. Cordeiro, Valmir Macario

arxiv:2012.03087 v1 · 2020-12-05 · 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{QSZE5JFNPEP7CETHG345HBUTK5}

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	2026-07-05T01:57:25.641381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84b24ea4ad791ff1126736f9d38693575c2d0fdf6aa875b9e5ec9d4839e7c816

Aliases

arxiv: 2012.03087 · arxiv_version: 2012.03087v1 · doi: 10.48550/arxiv.2012.03087 · pith_short_12: QSZE5JFNPEP7 · pith_short_16: QSZE5JFNPEP7CETH · pith_short_8: QSZE5JFN

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/QSZE5JFNPEP7CETHG345HBUTK5 \
  | 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: 84b24ea4ad791ff1126736f9d38693575c2d0fdf6aa875b9e5ec9d4839e7c816

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72e90676d6f5e0395e35504349d40744b08251e59c3143d2952dad6233d7457d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-12-05T17:40:05Z",
    "title_canon_sha256": "5be3c94d333d84a80acaa313b6632f17291129ceea77720a52474990179ec010"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.03087",
    "kind": "arxiv",
    "version": 1
  }
}