Pith Number

pith:IV5CPN4X

pith:2019:IV5CPN4XBZE2EJRWS4IUYBMN5B

not attested not anchored not stored refs pending

Alpaca: Intermittent Execution without Checkpoints

Alexei Colin, Brandon Lucia, Kiwan Maeng

arxiv:1909.06951 v1 · 2019-09-13 · 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{IV5CPN4XBZE2EJRWS4IUYBMN5B}

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.

Cited by

1 paper in Pith

FreeBeacon: Efficient Communication and Data Aggregation in Battery-Free IoT

Receipt and verification

First computed	2026-07-05T00:04:51.795505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

457a27b7970e49a2263697114c058de86e3829c9ea188747121a3ea70b73f4cf

Aliases

arxiv: 1909.06951 · arxiv_version: 1909.06951v1 · doi: 10.48550/arxiv.1909.06951 · pith_short_12: IV5CPN4XBZE2 · pith_short_16: IV5CPN4XBZE2EJRW · pith_short_8: IV5CPN4X

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/IV5CPN4XBZE2EJRWS4IUYBMN5B \
  | 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: 457a27b7970e49a2263697114c058de86e3829c9ea188747121a3ea70b73f4cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1a9046d224040c6718f0d7d038c29c9a4dda2062ece46ee5ecc2a37135b724c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-09-13T17:55:37Z",
    "title_canon_sha256": "3827aebf53a9aa7f1e49154a32ed33889e9753176bd8dbc74466fd7c0f1d1eb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06951",
    "kind": "arxiv",
    "version": 1
  }
}