Pith Number

pith:Z7YX7Q6U

pith:2020:Z7YX7Q6UHTT7DTAAA2UHJM5Y5E

not attested not anchored not stored refs pending

Threshy: Supporting Safe Usage of Intelligent Web Services

Alex Cummaudo, John Grundy, Rajesh Vasa, Scott Barnett

arxiv:2008.08252 v1 · 2020-08-19 · cs.SE · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z7YX7Q6UHTT7DTAAA2UHJM5Y5E}

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	2026-07-05T01:28:23.911887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cff17fc3d43ce7f1cc0006a874b3b8e90c4210ee0cb8c8e97fb14ed818272576

Aliases

arxiv: 2008.08252 · arxiv_version: 2008.08252v1 · doi: 10.48550/arxiv.2008.08252 · pith_short_12: Z7YX7Q6UHTT7 · pith_short_16: Z7YX7Q6UHTT7DTAA · pith_short_8: Z7YX7Q6U

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/Z7YX7Q6UHTT7DTAAA2UHJM5Y5E \
  | 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: cff17fc3d43ce7f1cc0006a874b3b8e90c4210ee0cb8c8e97fb14ed818272576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cefab962811c33b575f3f036127dfadcd12b83d0a968a4a85f0b276727eb216d",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2020-08-19T04:02:45Z",
    "title_canon_sha256": "b12351a4c8e8158a119ea801254e347e575b047bdd0eb4051d238a9ea977808c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.08252",
    "kind": "arxiv",
    "version": 1
  }
}