Pith Number

pith:BTUDUSEC

pith:2021:BTUDUSECOWQ4TLZEVONKTPGIH3

not attested not anchored not stored refs pending

Pixel-Perfect Structure-from-Motion with Featuremetric Refinement

Marc Pollefeys, Paul-Edouard Sarlin, Philipp Lindenberger, Viktor Larsson

arxiv:2108.08291 v1 · 2021-08-18 · 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{BTUDUSECOWQ4TLZEVONKTPGIH3}

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.

Cited by

1 paper in Pith

Bundle Adjustment in the Eager Mode

Receipt and verification

First computed	2026-07-05T03:07:01.444762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ce83a488275a1c9af24ab9aa9bcc83ef15ff82b1e2e97c76374c153cddebf99

Aliases

arxiv: 2108.08291 · arxiv_version: 2108.08291v1 · doi: 10.48550/arxiv.2108.08291 · pith_short_12: BTUDUSECOWQ4 · pith_short_16: BTUDUSECOWQ4TLZE · pith_short_8: BTUDUSEC

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/BTUDUSECOWQ4TLZEVONKTPGIH3 \
  | 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: 0ce83a488275a1c9af24ab9aa9bcc83ef15ff82b1e2e97c76374c153cddebf99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4faeb55b5f0e5e0558f56876a7f461ccd1825a302880198a15143684d74fdda2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-18T17:58:55Z",
    "title_canon_sha256": "4f29edcd240447f624d8924995df42b6776045e4d3a742a179b815c111594640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08291",
    "kind": "arxiv",
    "version": 1
  }
}