Pith Number

pith:UROFS6QK

pith:2017:UROFS6QKTGHMH7S337EJB2OTY3

not attested not anchored not stored refs pending

Unsupervised Visual-Linguistic Reference Resolution in Instructional Videos

De-An Huang, Joseph J. Lim, Juan Carlos Niebles, Li Fei-Fei

arxiv:1703.02521 v2 · 2017-03-07 · 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	2026-05-18T00:44:08.843513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a45c597a0a998ec3fe5bdfc890e9d3c6ea83e20341898104a4fac1b45bd2a859

Aliases

arxiv: 1703.02521 · arxiv_version: 1703.02521v2 · doi: 10.48550/arxiv.1703.02521 · pith_short_12: UROFS6QKTGHM · pith_short_16: UROFS6QKTGHMH7S3 · pith_short_8: UROFS6QK

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/UROFS6QKTGHMH7S337EJB2OTY3 \
  | 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: a45c597a0a998ec3fe5bdfc890e9d3c6ea83e20341898104a4fac1b45bd2a859

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f726690f3b789725fb655a99b4a9ba0ab15db832ebaeb6ddc46350c6a4156e6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-03-07T18:40:27Z",
    "title_canon_sha256": "56d29b7c8fe163778ca470f1de5cdc48bc3df8c962be1a88ee54901bdf0061e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02521",
    "kind": "arxiv",
    "version": 2
  }
}