Pith Number

pith:PWACAKUV

pith:2015:PWACAKUVH3CDXXIN6CZHN5AJ7A

not attested not anchored not stored refs pending

Feedback and Time are Essential for the Optimal Control of Computing Systems

Eric C. Kerrigan

arxiv:1510.01135 v1 · 2015-10-05 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWACAKUVH3CDXXIN6CZHN5AJ7A}

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	2026-05-18T00:33:04.407545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d80202a953ec43bdd0df0b276f409f80766e57e835ecea41b678165db41be7b

Aliases

arxiv: 1510.01135 · arxiv_version: 1510.01135v1 · doi: 10.48550/arxiv.1510.01135 · pith_short_12: PWACAKUVH3CD · pith_short_16: PWACAKUVH3CDXXIN · pith_short_8: PWACAKUV

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/PWACAKUVH3CDXXIN6CZHN5AJ7A \
  | 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: 7d80202a953ec43bdd0df0b276f409f80766e57e835ecea41b678165db41be7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b64b390d444b00adc7dfba6cd6e700dedbcb815c81c0b6628454e1d54983ca1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-10-05T13:06:17Z",
    "title_canon_sha256": "681614572206ea9da6bfa189232f540f8f935a8e28624b6ceaae540d9ab33d8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.01135",
    "kind": "arxiv",
    "version": 1
  }
}