Pith Number

pith:EI7HHST5

pith:2022:EI7HHST5XZGH7JDWBWDMNQWEH6

not attested not anchored not stored refs pending

Towards Universal Backward-Compatible Representation Learning

Binjie Zhang, Chun Yuan, Fanzi Wu, Shupeng Su, Xuyuan Xu, Yantao Shen, Yexin Wang, Ying Shan, Yixiao Ge

arxiv:2203.01583 v2 · 2022-03-03 · 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{EI7HHST5XZGH7JDWBWDMNQWEH6}

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	2026-07-05T04:06:19.517113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

223e73ca7dbe4c7fa4760d86c6c2c43faad5d1dd6c3eb4b79cb1f41cda42a157

Aliases

arxiv: 2203.01583 · arxiv_version: 2203.01583v2 · doi: 10.48550/arxiv.2203.01583 · pith_short_12: EI7HHST5XZGH · pith_short_16: EI7HHST5XZGH7JDW · pith_short_8: EI7HHST5

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/EI7HHST5XZGH7JDWBWDMNQWEH6 \
  | 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: 223e73ca7dbe4c7fa4760d86c6c2c43faad5d1dd6c3eb4b79cb1f41cda42a157

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "331a0d93f2e9e944147ef9a090962bb254f59ba2ab3ef58e85c603639d5abc17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-03T09:23:51Z",
    "title_canon_sha256": "5a43f399873164610172a3a2aec19d79f1089c9a30a453d6aab851974841f172"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.01583",
    "kind": "arxiv",
    "version": 2
  }
}