Pith Number

pith:HCNY7YD4

pith:2017:HCNY7YD44UPODZUMDURTXRDRM3

not attested not anchored not stored refs pending

A synchronous program algebra: a basis for reasoning about shared-memory and event-based concurrency

Ian J. Hayes, Kirsten Winter, Larissa A. Meinicke, Robert J. Colvin

arxiv:1710.03352 v1 · 2017-10-09 · cs.LO · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HCNY7YD44UPODZUMDURTXRDRM3}

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	2026-05-18T00:33:12.297337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

389b8fe07ce51ee1e68c1d233bc47166c718c0dc0cfc91d6464ef79134b3c3b7

Aliases

arxiv: 1710.03352 · arxiv_version: 1710.03352v1 · doi: 10.48550/arxiv.1710.03352 · pith_short_12: HCNY7YD44UPO · pith_short_16: HCNY7YD44UPODZUM · pith_short_8: HCNY7YD4

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/HCNY7YD44UPODZUMDURTXRDRM3 \
  | 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: 389b8fe07ce51ee1e68c1d233bc47166c718c0dc0cfc91d6464ef79134b3c3b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "280c205bb68d749eacc6ca5a0609408a5da1354f10a53a14518a2204ba658f98",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-10-09T23:48:19Z",
    "title_canon_sha256": "641f8ac600d6e21d8e196f468f5574bcf5660f062c2c95288feec7e476d3e157"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03352",
    "kind": "arxiv",
    "version": 1
  }
}