Pith Number

pith:2FJQPLBU

pith:2018:2FJQPLBUBB2V6MZ4M7YHV6MBU3

not attested not anchored not stored refs pending

Training on the test set? An analysis of Spampinato et al. [31]

Hamad Ahmed, Hari M Bharadwaj, Jared S. Johansen, Jeffrey Mark Siskind, Ren Li, Ronnie B Wilbur, Thomas V. Ilyevsky

arxiv:1812.07697 v1 · 2018-12-18 · cs.CV · cs.LG · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FJQPLBUBB2V6MZ4M7YHV6MBU3}

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	2026-05-17T23:57:56.282111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d15307ac3408755f333c67f07af981a6f8a4ff4858ff17747173f3f4286a134a

Aliases

arxiv: 1812.07697 · arxiv_version: 1812.07697v1 · doi: 10.48550/arxiv.1812.07697 · pith_short_12: 2FJQPLBUBB2V · pith_short_16: 2FJQPLBUBB2V6MZ4 · pith_short_8: 2FJQPLBU

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/2FJQPLBUBB2V6MZ4M7YHV6MBU3 \
  | 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: d15307ac3408755f333c67f07af981a6f8a4ff4858ff17747173f3f4286a134a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69a27fe75b966765e54d6468a6a3fe91ea1293bed60c5c4f706d5a899d078844",
    "cross_cats_sorted": [
      "cs.LG",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-12-18T23:38:28Z",
    "title_canon_sha256": "ee5deda6da492b63ab72fa9daea9c3dcaf404251d4353499bc8fdb1bff2a80d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07697",
    "kind": "arxiv",
    "version": 1
  }
}