Pith Number

pith:MRSLH63T

pith:2017:MRSLH63TFCV7SNWMMFXUK5SGOS

not attested not anchored not stored refs pending

Safe Pointers in SPARK 2014

Georges-Axel Jaloyan

arxiv:1710.07047 v1 · 2017-10-19 · 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{MRSLH63TFCV7SNWMMFXUK5SGOS}

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	2026-05-18T00:32:27.207997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6464b3fb7328abf936cc616f4576467489a562df7b4dee87ee108da00de8f8a2

Aliases

arxiv: 1710.07047 · arxiv_version: 1710.07047v1 · doi: 10.48550/arxiv.1710.07047 · pith_short_12: MRSLH63TFCV7 · pith_short_16: MRSLH63TFCV7SNWM · pith_short_8: MRSLH63T

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/MRSLH63TFCV7SNWMMFXUK5SGOS \
  | 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: 6464b3fb7328abf936cc616f4576467489a562df7b4dee87ee108da00de8f8a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e137b75cb60b1eb4633fbe05413ac7331e9ba0ba0003d49b66e294af91b6d4a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-10-19T09:19:18Z",
    "title_canon_sha256": "81eb398c8a709ba0409ea7fbcc3319d1f3d6989886770f8b310c6a2cafce2771"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07047",
    "kind": "arxiv",
    "version": 1
  }
}