Pith Number

pith:ICHAXOYC

pith:2015:ICHAXOYCTQQPX4DKSDFJHC65ID

not attested not anchored not stored refs pending

Efficient Symbol Detection for the FSO IM/DD System with Automatic and Adaptive Threshold Adjustment: The Multi-level PAM Case

Pooi-Yuen Kam, Tianyu Song

arxiv:1505.02536 v1 · 2015-05-11 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ICHAXOYCTQQPX4DKSDFJHC65ID}

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	2026-05-18T02:16:18.526822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

408e0bbb029c20fbf06a90ca938bdd40c7662157b9e4d08e5f61972e551ad5ae

Aliases

arxiv: 1505.02536 · arxiv_version: 1505.02536v1 · doi: 10.48550/arxiv.1505.02536 · pith_short_12: ICHAXOYCTQQP · pith_short_16: ICHAXOYCTQQPX4DK · pith_short_8: ICHAXOYC

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/ICHAXOYCTQQPX4DKSDFJHC65ID \
  | 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: 408e0bbb029c20fbf06a90ca938bdd40c7662157b9e4d08e5f61972e551ad5ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b777dd83a81a2643c66c5ae8459e93a19988765dbeb50f355d5b7a02773488aa",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-05-11T09:38:34Z",
    "title_canon_sha256": "1b1e704570852f607f424b8f8b916b9d2381382cf8f58e8a848cb2c86258cb71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02536",
    "kind": "arxiv",
    "version": 1
  }
}