Pith Number

pith:NKFOLOLQ

pith:2026:NKFOLOLQSWJJAEDDQEUJV3HHMZ

not attested not anchored not stored refs pending

When HTTP 402 Meets the Blockchain: Risks on Emerging x402 Payments

Mathias Payer, Qinying Wang, Shouling Ji, Yong Yang, Yuan Chen

arxiv:2607.19545 v1 · 2026-07-21 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NKFOLOLQSWJJAEDDQEUJV3HHMZ}

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	2026-07-23T00:23:55.946044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a8ae5b970959290106381289aece7667954da513affccce546cc37e48f8d9bf

Aliases

arxiv: 2607.19545 · arxiv_version: 2607.19545v1 · doi: 10.48550/arxiv.2607.19545 · pith_short_12: NKFOLOLQSWJJ · pith_short_16: NKFOLOLQSWJJAEDD · pith_short_8: NKFOLOLQ

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/NKFOLOLQSWJJAEDDQEUJV3HHMZ \
  | 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: 6a8ae5b970959290106381289aece7667954da513affccce546cc37e48f8d9bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "786a134efe149059bc77ba65318a6da9cf6cf2b83e72fc01b8dbd66578c342eb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-21T19:45:13Z",
    "title_canon_sha256": "cf21e76b666acc5df5b37392a0f00200db12e593520cf3498b697e8966a44109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19545",
    "kind": "arxiv",
    "version": 1
  }
}