Pith Number

pith:O7YZYLPU

pith:2021:O7YZYLPUXLD4SED7N2KCJ72TY4

not attested not anchored not stored refs pending

MMF: Multi-Task Multi-Structure Fusion for Hierarchical Image Classification

Weiping Wang, Xiaoni Li, Yucan Zhou, Yu Zhou

arxiv:2107.00808 v1 · 2021-07-02 · 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{O7YZYLPUXLD4SED7N2KCJ72TY4}

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	2026-07-05T02:54:33.912379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77f19c2df4bac7c9107f6e9424ff53c72eec97de0f5881a355ec6dfe17df36a7

Aliases

arxiv: 2107.00808 · arxiv_version: 2107.00808v1 · doi: 10.48550/arxiv.2107.00808 · pith_short_12: O7YZYLPUXLD4 · pith_short_16: O7YZYLPUXLD4SED7 · pith_short_8: O7YZYLPU

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/O7YZYLPUXLD4SED7N2KCJ72TY4 \
  | 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: 77f19c2df4bac7c9107f6e9424ff53c72eec97de0f5881a355ec6dfe17df36a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c084a94b827c36fc10ac5239ce5bc4c6371a4d73310ea853b4ad490c8e0cd32c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-07-02T02:53:35Z",
    "title_canon_sha256": "c71ee943bc0ff2ca6d81b59e080f0df4f04da062681f3760f9ec72a67edda2bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.00808",
    "kind": "arxiv",
    "version": 1
  }
}