Pith Number

pith:XHGFXMGZ

pith:2020:XHGFXMGZTHD4DFZ3LILHFX67NN

not attested not anchored not stored refs pending

Flow2Stereo: Effective Self-Supervised Learning of Optical Flow and Stereo Matching

Irwin King, Jia Xu, Michael Lyu, Pengpeng Liu

arxiv:2004.02138 v1 · 2020-04-05 · cs.CV · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHGFXMGZTHD4DFZ3LILHFX67NN}

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	2026-07-05T00:52:56.251188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9cc5bb0d999c7c1973b5a1672dfdf6b54b82c06e937e91bcff177662cefe4db

Aliases

arxiv: 2004.02138 · arxiv_version: 2004.02138v1 · doi: 10.48550/arxiv.2004.02138 · pith_short_12: XHGFXMGZTHD4 · pith_short_16: XHGFXMGZTHD4DFZ3 · pith_short_8: XHGFXMGZ

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/XHGFXMGZTHD4DFZ3LILHFX67NN \
  | 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: b9cc5bb0d999c7c1973b5a1672dfdf6b54b82c06e937e91bcff177662cefe4db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "142d0dc900350731a0b0cb0d52e297089466bc44da568a3f3205feea67ff6c07",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-05T09:52:04Z",
    "title_canon_sha256": "0b6ec4e37edfeba226a822f3039130df13ae76203efe3b4f3faf673618bb981f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02138",
    "kind": "arxiv",
    "version": 1
  }
}