Pith Number

pith:5UFPPO64

pith:2015:5UFPPO64TATVXZT7PHSP644Q6R

not attested not anchored not stored refs pending

From Non-preemptive to Preemptive Scheduling using Synchronization Synthesis

Arjun Radhakrishna, Edmund M. Clarke, Leonid Ryzhyk, Pavol \v{C}ern\'y, Roopsha Samanta, Thomas A. Henzinger, Thorsten Tarrach

arxiv:1505.04533 v1 · 2015-05-18 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UFPPO64TATVXZT7PHSP644Q6R}

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	2026-05-18T02:07:25.222822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed0af7bbdc98275be67f79e4ff7390f45600dcda57f16c3c9dbdff41b82307a3

Aliases

arxiv: 1505.04533 · arxiv_version: 1505.04533v1 · doi: 10.48550/arxiv.1505.04533 · pith_short_12: 5UFPPO64TATV · pith_short_16: 5UFPPO64TATVXZT7 · pith_short_8: 5UFPPO64

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/5UFPPO64TATVXZT7PHSP644Q6R \
  | 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: ed0af7bbdc98275be67f79e4ff7390f45600dcda57f16c3c9dbdff41b82307a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b858ad35adc23ae857c7a801423890682eeb8bb1cd30e96b266e5cbe5d355338",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-05-18T07:25:17Z",
    "title_canon_sha256": "6626359745d5be2efd03d92cb55d10efe7d1ca6bf902b612ddb226f560a449ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04533",
    "kind": "arxiv",
    "version": 1
  }
}