Pith Number

pith:OO4QVUXG

pith:2019:OO4QVUXGMECT7DRYH4D2I4WW67

not attested not anchored not stored refs pending

Unsupervised 3D Pose Estimation with Geometric Self-Supervision

Ambrish Tyagi, Amit Agrawal, Ching-Hang Chen, Dylan Drover, James M. Rehg, Rohith MV, Stefan Stojanov

arxiv:1904.04812 v1 · 2019-04-09 · 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{OO4QVUXGMECT7DRYH4D2I4WW67}

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	2026-05-17T23:48:58.144159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73b90ad2e661053f8e383f07a472d6f7de726b171eabf3b3a385da7a28aa7f1e

Aliases

arxiv: 1904.04812 · arxiv_version: 1904.04812v1 · doi: 10.48550/arxiv.1904.04812 · pith_short_12: OO4QVUXGMECT · pith_short_16: OO4QVUXGMECT7DRY · pith_short_8: OO4QVUXG

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/OO4QVUXGMECT7DRYH4D2I4WW67 \
  | 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: 73b90ad2e661053f8e383f07a472d6f7de726b171eabf3b3a385da7a28aa7f1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0795d7742dc4ac9ff4243c8e1e04ce2789162834bc09c29880d4352e86f96d8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-09T17:53:50Z",
    "title_canon_sha256": "3fc01b1012d76869cfeb6c0cbc3c672c088a4b646ab904766806ea2ccca3f252"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04812",
    "kind": "arxiv",
    "version": 1
  }
}