Pith Number

pith:SUTGHKYB

pith:2021:SUTGHKYBRPJ2LASOIXH6VGWJ3U

not attested not anchored not stored refs pending

Reconstructing and grounding narrated instructional videos in 3D

Bugra Tekin, Dimitri Zhukov, Ignacio Rocco, Ivan Laptev, Johannes L. Sch\"onberger, Josef Sivic, Marc Pollefeys

arxiv:2109.04409 v2 · 2021-09-09 · 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{SUTGHKYBRPJ2LASOIXH6VGWJ3U}

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	2026-07-05T03:13:06.372780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

952663ab018bd3a5824e45cfea9ac9dd19417ff5fd2a40705ae82f07023e6de9

Aliases

arxiv: 2109.04409 · arxiv_version: 2109.04409v2 · doi: 10.48550/arxiv.2109.04409 · pith_short_12: SUTGHKYBRPJ2 · pith_short_16: SUTGHKYBRPJ2LASO · pith_short_8: SUTGHKYB

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/SUTGHKYBRPJ2LASOIXH6VGWJ3U \
  | 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: 952663ab018bd3a5824e45cfea9ac9dd19417ff5fd2a40705ae82f07023e6de9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d071c05ffcadf08ac32d79fac288c48f5b03ecd03045ab681c4a4929802f6a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-09T16:49:10Z",
    "title_canon_sha256": "50523800e333f2d82bb61d93b10b52d8efe15dae2179605dcecff244fd4feda7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04409",
    "kind": "arxiv",
    "version": 2
  }
}