Pith Number

pith:7HFQANF4

pith:2019:7HFQANF4WGXPE4X2IHMT67AZJT

not attested not anchored not stored refs pending

A formalisation of the SPARC TSO memory model for multi-core machine code

Alwen Tiu, David Sanan, Jin Song Dong, Yang Liu, Zhe Hou

arxiv:1906.11203 v1 · 2019-06-24 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HFQANF4WGXPE4X2IHMT67AZJT}

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	2026-05-17T23:42:09.449415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9cb0034bcb1aef272fa41d93f7c194ccc29cff140dfb6e855fc7f266aaa6ac2

Aliases

arxiv: 1906.11203 · arxiv_version: 1906.11203v1 · doi: 10.48550/arxiv.1906.11203 · pith_short_12: 7HFQANF4WGXP · pith_short_16: 7HFQANF4WGXPE4X2 · pith_short_8: 7HFQANF4

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/7HFQANF4WGXPE4X2IHMT67AZJT \
  | 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: f9cb0034bcb1aef272fa41d93f7c194ccc29cff140dfb6e855fc7f266aaa6ac2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6348647859695e00dd08de9dd779b6d53fbd2f83ee84cd1f9b9d168292190b24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-06-24T05:08:39Z",
    "title_canon_sha256": "c58d7111370173dad7d3f668833b0fe88c3ac5efe87cebd394944e38affceccb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11203",
    "kind": "arxiv",
    "version": 1
  }
}