Pith Number

pith:7II2BIS4

pith:2011:7II2BIS4KSEHPF3AKUQI27P4MQ

not attested not anchored not stored refs pending

Nested Refinements for Dynamic Languages

Patrick M. Rondon, Ranjit Jhala, Ravi Chugh

arxiv:1103.5055 v2 · 2011-03-25 · 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{7II2BIS4KSEHPF3AKUQI27P4MQ}

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	2026-05-18T04:13:05.520053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa11a0a25c548877976055208d7dfc642455dd8b8286e84331ef11990df24059

Aliases

arxiv: 1103.5055 · arxiv_version: 1103.5055v2 · doi: 10.48550/arxiv.1103.5055 · pith_short_12: 7II2BIS4KSEH · pith_short_16: 7II2BIS4KSEHPF3A · pith_short_8: 7II2BIS4

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/7II2BIS4KSEHPF3AKUQI27P4MQ \
  | 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: fa11a0a25c548877976055208d7dfc642455dd8b8286e84331ef11990df24059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4402ff77735317da4f95bd50b73b20a648d90a24e60312cbc5ff6d4037912d72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2011-03-25T18:19:55Z",
    "title_canon_sha256": "1f1a231b1a4f1b87f50d2e98fd10ad8c47ef43186a3d81d01c826ab27801f80e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5055",
    "kind": "arxiv",
    "version": 2
  }
}