Pith Number

pith:6VM3OUS6

pith:2021:6VM3OUS6FPMCDOXQONRCSHM5M6

not attested not anchored not stored refs pending

Unsupervised Person Re-Identification: A Systematic Survey of Challenges and Solutions

Andy Song, Chung-Hsing Yeh, Lina Yao, Pengzhen Ren, Xiangtan Lin, Xiaojun Chang

arxiv:2109.06057 v2 · 2021-09-01 · 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{6VM3OUS6FPMCDOXQONRCSHM5M6}

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	2026-07-05T03:19:45.811920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f559b7525e2bd821baf07362291d9d67a5769d679b3c0b2bdda17cef198baa4e

Aliases

arxiv: 2109.06057 · arxiv_version: 2109.06057v2 · doi: 10.48550/arxiv.2109.06057 · pith_short_12: 6VM3OUS6FPMC · pith_short_16: 6VM3OUS6FPMCDOXQ · pith_short_8: 6VM3OUS6

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/6VM3OUS6FPMCDOXQONRCSHM5M6 \
  | 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: f559b7525e2bd821baf07362291d9d67a5769d679b3c0b2bdda17cef198baa4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6224f26a49a0034cb419338606e54ad68b05e7c94549f2ab4328e0b3b4a0e09c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-01T00:01:35Z",
    "title_canon_sha256": "b735866627ab157bbf6d5505a8c507ae10434942162d1655ba3072ec48385d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06057",
    "kind": "arxiv",
    "version": 2
  }
}