Pith Number

pith:HQONLSHX

pith:2019:HQONLSHXDAJ272XVUCG6JSFBGG

not attested not anchored not stored refs pending

Exponential Observation Error in Boundary Region

Anas Dheyab Al-Joubory

arxiv:1907.02632 v1 · 2019-07-04 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQONLSHXDAJ272XVUCG6JSFBGG}

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	2026-05-17T23:41:23.695660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c1cd5c8f71813afeaf5a08de4c8a1318725d6fe50842aa511f276f3d354880e

Aliases

arxiv: 1907.02632 · arxiv_version: 1907.02632v1 · doi: 10.48550/arxiv.1907.02632 · pith_short_12: HQONLSHXDAJ2 · pith_short_16: HQONLSHXDAJ272XV · pith_short_8: HQONLSHX

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/HQONLSHXDAJ272XVUCG6JSFBGG \
  | 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: 3c1cd5c8f71813afeaf5a08de4c8a1318725d6fe50842aa511f276f3d354880e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c365818006338471173a2b7902752c25c6aa6d367c4ddf14fd988b74cbe20e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-07-04T03:09:34Z",
    "title_canon_sha256": "ba5f8352e813037ba8a7102fceb63063ded4391bca25a8371bb29a277c60191f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02632",
    "kind": "arxiv",
    "version": 1
  }
}