Pith Number

pith:L2Q46IMK

pith:2025:L2Q46IMKRNQU54KJSO5IKNZDMP

not attested not anchored not stored refs pending

FoodTrack: Estimating Handheld Food Portions with Egocentric Video

Ervin Wang, Yuhao Chen

arxiv:2505.04055 v1 · 2025-05-07 · 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{L2Q46IMKRNQU54KJSO5IKNZDMP}

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	2026-07-05T10:59:35.707352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea1cf218a8b614ef14993ba85372363ca8e8b734e27b96de58a7bedbdeba5bd

Aliases

arxiv: 2505.04055 · arxiv_version: 2505.04055v1 · doi: 10.48550/arxiv.2505.04055 · pith_short_12: L2Q46IMKRNQU · pith_short_16: L2Q46IMKRNQU54KJ · pith_short_8: L2Q46IMK

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/L2Q46IMKRNQU54KJSO5IKNZDMP \
  | 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: 5ea1cf218a8b614ef14993ba85372363ca8e8b734e27b96de58a7bedbdeba5bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bfe5449cbe4df24d16b7a7c59a41fc6d3e3eaf962fa341d9352c7e32ab49914",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-05-07T01:53:16Z",
    "title_canon_sha256": "8272c769184a454375457205c51d2b201af479310acfe4a2d6e03e26ed9a2054"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.04055",
    "kind": "arxiv",
    "version": 1
  }
}