Pith Number

pith:JHB45VOJ

pith:2021:JHB45VOJOWH5MVM3I22EZBDBQU

not attested not anchored not stored refs pending

Deep Video Matting via Spatio-Temporal Alignment and Aggregation

Chi-Keung Tang, Guanzhi Wang, Qiao Gu, Yanan Sun, Yu-Wing Tai

arxiv:2104.11208 v1 · 2021-04-22 · 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{JHB45VOJOWH5MVM3I22EZBDBQU}

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	2026-07-05T02:34:18.727925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49c3ced5c9758fd6559b46b44c84618531a59d9a82ee40b222959654f2e346fa

Aliases

arxiv: 2104.11208 · arxiv_version: 2104.11208v1 · doi: 10.48550/arxiv.2104.11208 · pith_short_12: JHB45VOJOWH5 · pith_short_16: JHB45VOJOWH5MVM3 · pith_short_8: JHB45VOJ

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/JHB45VOJOWH5MVM3I22EZBDBQU \
  | 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: 49c3ced5c9758fd6559b46b44c84618531a59d9a82ee40b222959654f2e346fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "295b449be34e336c96ddb0b1ee02b59ca1c72d70e5fca05e173a13bc2fdb9064",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-22T17:42:08Z",
    "title_canon_sha256": "16d50c5f2069403fade9a053b8b6c3a11633692e5d6c1809b8bdea8bf4c9817f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.11208",
    "kind": "arxiv",
    "version": 1
  }
}