Pith Number

pith:GJYSPM55

pith:2013:GJYSPM557T6ESCUYONKBMRWHF3

not attested not anchored not stored refs pending

Monotonic References for Gradual Typing

Jeremy G. Siek, Michael M. Vitousek

arxiv:1312.0694 v2 · 2013-12-03 · 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{GJYSPM557T6ESCUYONKBMRWHF3}

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	2026-05-18T02:47:44.641665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

327127b3bdfcfc490a9873541646c72ed8beaeed936e4f2459a7463d6af90511

Aliases

arxiv: 1312.0694 · arxiv_version: 1312.0694v2 · doi: 10.48550/arxiv.1312.0694 · pith_short_12: GJYSPM557T6E · pith_short_16: GJYSPM557T6ESCUY · pith_short_8: GJYSPM55

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/GJYSPM557T6ESCUYONKBMRWHF3 \
  | 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: 327127b3bdfcfc490a9873541646c72ed8beaeed936e4f2459a7463d6af90511

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e740e5a7f0aaaebf25af12c0bfb81d4890c96ef5e425db66d673296b35c97122",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2013-12-03T04:24:44Z",
    "title_canon_sha256": "af5617a65633ac280dde51fb9865b52ab710829857afd0d06fc68424d4a82224"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0694",
    "kind": "arxiv",
    "version": 2
  }
}