Pith Number

pith:S2BBTDNQ

pith:2019:S2BBTDNQLHDCRPFPO5HZWAAPMI

not attested not anchored not stored refs pending

Yosys+nextpnr: an Open Source Framework from Verilog to Bitstream for Commercial FPGAs

Clifford Wolf, Dan Gisselquist, David Shah, Eddie Hung, Miodrag Milanovi\'c, Serge Bazanski

arxiv:1903.10407 v1 · 2019-03-25 · 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{S2BBTDNQLHDCRPFPO5HZWAAPMI}

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	2026-05-17T23:50:29.502861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9682198db059c628bcaf774f9b000f6218e6b730611a488c8d7bcf56505b9173

Aliases

arxiv: 1903.10407 · arxiv_version: 1903.10407v1 · doi: 10.48550/arxiv.1903.10407 · pith_short_12: S2BBTDNQLHDC · pith_short_16: S2BBTDNQLHDCRPFP · pith_short_8: S2BBTDNQ

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/S2BBTDNQLHDCRPFPO5HZWAAPMI \
  | 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: 9682198db059c628bcaf774f9b000f6218e6b730611a488c8d7bcf56505b9173

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80950f9b0541aba6249b9925584517990624443067122b55cb12dfa35066d1a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-03-25T15:40:21Z",
    "title_canon_sha256": "5996033147aaf404749ae622210a0940e9f448c132f0fd21bbed086bca9796ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10407",
    "kind": "arxiv",
    "version": 1
  }
}