Pith Number

pith:NF5LM6XK

pith:2021:NF5LM6XKKHWB75AETVOW37DS7Y

not attested not anchored not stored refs pending

Method Towards CVPR 2021 Image Matching Challenge

Dehao Zhang, Haotian Zhang, Ran Yan, Xiao Liu, Xiaopeng Bi, Xinyang Liu, Yu Chen, Zheng Chai

arxiv:2108.04453 v2 · 2021-08-10 · 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{NF5LM6XKKHWB75AETVOW37DS7Y}

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	2026-07-05T03:05:04.360274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

697ab67aea51ec1ff4049d5d6dfc72fe0682745d6fde3208e299fc14b9493f11

Aliases

arxiv: 2108.04453 · arxiv_version: 2108.04453v2 · doi: 10.48550/arxiv.2108.04453 · pith_short_12: NF5LM6XKKHWB · pith_short_16: NF5LM6XKKHWB75AE · pith_short_8: NF5LM6XK

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/NF5LM6XKKHWB75AETVOW37DS7Y \
  | 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: 697ab67aea51ec1ff4049d5d6dfc72fe0682745d6fde3208e299fc14b9493f11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d39e23c1f81fc4c0331c9d12746be55204f827cd8f663e5baeaab7a479e8c29a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-08-10T05:25:59Z",
    "title_canon_sha256": "252a6f15590a2cdcd7ee313e929d14e738fdd6bd5de5f4095660176ce6381693"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.04453",
    "kind": "arxiv",
    "version": 2
  }
}