Pith Number

pith:N4B5IFTH

pith:2015:N4B5IFTHX22KYUEIC5M6EEM5IB

not attested not anchored not stored refs pending

Massive Online Crowdsourced Study of Subjective and Objective Picture Quality

Alan C. Bovik, Deepti Ghadiyaram

arxiv:1511.02919 v1 · 2015-11-09 · 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{N4B5IFTHX22KYUEIC5M6EEM5IB}

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	2026-05-18T01:22:19.688856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f03d41667beb4ac50881759e2119d407052b2c3793b8937054b359d8678898a

Aliases

arxiv: 1511.02919 · arxiv_version: 1511.02919v1 · doi: 10.48550/arxiv.1511.02919 · pith_short_12: N4B5IFTHX22K · pith_short_16: N4B5IFTHX22KYUEI · pith_short_8: N4B5IFTH

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/N4B5IFTHX22KYUEIC5M6EEM5IB \
  | 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: 6f03d41667beb4ac50881759e2119d407052b2c3793b8937054b359d8678898a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5a9287ee38e4b009ef7e0fe00ebf919682fd041d2fd33fde10ee3ca62aa4375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-11-09T22:39:58Z",
    "title_canon_sha256": "c617e056379e442db2c4111e8594ab3ba5599e82fa3742c30a865e2a16766629"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.02919",
    "kind": "arxiv",
    "version": 1
  }
}