Pith Number

pith:BQRZZAHH

pith:2018:BQRZZAHHOWTAKPFPO6QJKS365Z

not attested not anchored not stored refs pending

A Self-Supervised Bootstrap Method for Single-Image 3D Face Reconstruction

Paulo R. S. Mendonca, Rahul Tewari, Yifan Xing

arxiv:1812.05806 v2 · 2018-12-14 · 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{BQRZZAHHOWTAKPFPO6QJKS365Z}

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	2026-05-17T23:58:08.308548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c239c80e775a6053caf77a0954b7eee5d48c27038951b9cbe30b020559feee6

Aliases

arxiv: 1812.05806 · arxiv_version: 1812.05806v2 · doi: 10.48550/arxiv.1812.05806 · pith_short_12: BQRZZAHHOWTA · pith_short_16: BQRZZAHHOWTAKPFP · pith_short_8: BQRZZAHH

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/BQRZZAHHOWTAKPFPO6QJKS365Z \
  | 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: 0c239c80e775a6053caf77a0954b7eee5d48c27038951b9cbe30b020559feee6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f2156babd2b6ac51ae7a581a3349b38631e049106e6a4ae51c68833a9f05b32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-12-14T07:46:02Z",
    "title_canon_sha256": "40a97f0f71769a8f6ced6a15f14b73a6e6ca8ea65032f85dd8f36b09f112b9e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05806",
    "kind": "arxiv",
    "version": 2
  }
}