Pith Number

pith:PDLM7P6C

pith:2020:PDLM7P6CVLKV24NBRL4GNLNJKM

not attested not anchored not stored refs pending

Solving the Blind Perspective-n-Point Problem End-To-End With Robust Differentiable Geometric Optimization

Dylan Campbell, Liu Liu, Stephen Gould

arxiv:2007.14628 v2 · 2020-07-29 · 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{PDLM7P6CVLKV24NBRL4GNLNJKM}

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	2026-07-05T01:33:41.773780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d6cfbfc2aad55d71a18af866ada9530721e41a1ffc98a7c88813106b2aa6a0

Aliases

arxiv: 2007.14628 · arxiv_version: 2007.14628v2 · doi: 10.48550/arxiv.2007.14628 · pith_short_12: PDLM7P6CVLKV · pith_short_16: PDLM7P6CVLKV24NB · pith_short_8: PDLM7P6C

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/PDLM7P6CVLKV24NBRL4GNLNJKM \
  | 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: 78d6cfbfc2aad55d71a18af866ada9530721e41a1ffc98a7c88813106b2aa6a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "710b20a2fca4efbcf1f4fe33e216b8b28a25be92dd37bd9e5571cc39c2e95e60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-07-29T06:35:45Z",
    "title_canon_sha256": "daf69a69e3f80d94179bda623731ae50cf728856a435b2f73e0481a4738c6d0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.14628",
    "kind": "arxiv",
    "version": 2
  }
}