Pith Number

pith:AK36KCNF

pith:2021:AK36KCNFXAEYWKYBBJ2TYPI7AJ

not attested not anchored not stored refs pending

Universal Payment Channels: An Interoperability Platform for Digital Currencies

Arjuna Wijeyekoon, Cuy Sheffield, David Kreissman, Erin English, Mahdi Zamani, Mihai Christodorescu, Mohsen Minaei, Ranjit Kumaresan, Srinivasan Raghuraman, Wanyun Catherine Gu

arxiv:2109.12194 v2 · 2021-09-24 · cs.CR · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AK36KCNFXAEYWKYBBJ2TYPI7AJ}

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	2026-07-05T03:18:30.207359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02b7e509a5b8098b2b010a753c3d1f0250cab713252341e301cdc8addc782598

Aliases

arxiv: 2109.12194 · arxiv_version: 2109.12194v2 · doi: 10.48550/arxiv.2109.12194 · pith_short_12: AK36KCNFXAEY · pith_short_16: AK36KCNFXAEYWKYB · pith_short_8: AK36KCNF

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/AK36KCNFXAEYWKYBBJ2TYPI7AJ \
  | 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: 02b7e509a5b8098b2b010a753c3d1f0250cab713252341e301cdc8addc782598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f71c87b1a6cc92fbbf7558c1207c4ef1ab6c2d2bb58c888b3eb78d65ca408d2",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-09-24T21:01:01Z",
    "title_canon_sha256": "db1309ddbabad0672ae48961631a6bfcce31e292d18a8af1f7d85aa54ec4dfbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12194",
    "kind": "arxiv",
    "version": 2
  }
}