Pith Number

pith:BAXAXMWA

pith:2019:BAXAXMWAOXE3BMI45BJQATO5GV

not attested not anchored not stored refs pending

Least-squares registration of point sets over SE (d) using closed-form projections

Kunal Narayan Chaudhury, Niladri Ranjan Das, Sk. Miraj Ahmed

arxiv:1904.04218 v2 · 2019-04-08 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BAXAXMWAOXE3BMI45BJQATO5GV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:48:44.887731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

082e0bb2c075c9b0b11ce853004ddd3569dde3e1e3809245e212e8707d1ad8af

Aliases

arxiv: 1904.04218 · arxiv_version: 1904.04218v2 · doi: 10.48550/arxiv.1904.04218 · pith_short_12: BAXAXMWAOXE3 · pith_short_16: BAXAXMWAOXE3BMI4 · pith_short_8: BAXAXMWA

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/BAXAXMWAOXE3BMI45BJQATO5GV \
  | 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: 082e0bb2c075c9b0b11ce853004ddd3569dde3e1e3809245e212e8707d1ad8af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e51dc706a77b652060080abdb2202cbf5de2f306164df1baf5b13ea63d5c942",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-08T17:38:37Z",
    "title_canon_sha256": "48ff0f332f628eb392f67726287fde91fbfbcf7630810abe2fe27787da803e7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04218",
    "kind": "arxiv",
    "version": 2
  }
}