Pith Number

pith:U35GAKE7

pith:2018:U35GAKE76SZV4V2L7B2XSPRIQJ

not attested not anchored not stored refs pending

Universal Perceptual Grouping

Honggang Zhang, Jifei Song, Kaiyue Pang, Ke Li, Tao Xiang, Timothy M. Hospedales, Yi-Zhe Song

arxiv:1808.02312 v1 · 2018-08-07 · cs.CV

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

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	2026-05-18T00:08:46.932297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6fa60289ff4b35e574bf875793e28826a28fc52af4c739b0c6a3551cf32c441

Aliases

arxiv: 1808.02312 · arxiv_version: 1808.02312v1 · doi: 10.48550/arxiv.1808.02312 · pith_short_12: U35GAKE76SZV · pith_short_16: U35GAKE76SZV4V2L · pith_short_8: U35GAKE7

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/U35GAKE76SZV4V2L7B2XSPRIQJ \
  | 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: a6fa60289ff4b35e574bf875793e28826a28fc52af4c739b0c6a3551cf32c441

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca4748604f6bbddefc6282b7047d8436117ba4cbd17bd66aaf4d562bf6fec020",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-08-07T11:50:32Z",
    "title_canon_sha256": "a06c79c18f4d935b8db9b528e8883742df5346330ccd76dd7bcfb583586baef6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02312",
    "kind": "arxiv",
    "version": 1
  }
}