Pith Number

pith:UIMMWXDH

pith:2023:UIMMWXDHMCU5EJVU4IZRFIFMJL

not attested not anchored not stored refs pending

Mask-Free Video Instance Segmentation

Chi-Keung Tang, Fisher Yu, Henghui Ding, Lei Ke, Martin Danelljan, Yu-Wing Tai

arxiv:2303.15904 v1 · 2023-03-28 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIMMWXDHMCU5EJVU4IZRFIFMJL}

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	2026-07-05T05:55:29.726368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a218cb5c6760a9d226b4e23312a0ac4ad4bc3b590c279fbd74223c4f40f02a2a

Aliases

arxiv: 2303.15904 · arxiv_version: 2303.15904v1 · doi: 10.48550/arxiv.2303.15904 · pith_short_12: UIMMWXDHMCU5 · pith_short_16: UIMMWXDHMCU5EJVU · pith_short_8: UIMMWXDH

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/UIMMWXDHMCU5EJVU4IZRFIFMJL \
  | 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: a218cb5c6760a9d226b4e23312a0ac4ad4bc3b590c279fbd74223c4f40f02a2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4816fb60393b60a255dc023d5b60154d18f5eec4718fa1d392f4d8120732a196",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-03-28T11:48:07Z",
    "title_canon_sha256": "5e0ad4f99d5fca98b6334173a95d9857a9b33d46387e8ddd0a1614d130bf0836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.15904",
    "kind": "arxiv",
    "version": 1
  }
}