Pith Number

pith:MQTQJLJG

pith:2010:MQTQJLJGAF2C6E7HL7I2CJ5YXG

not attested not anchored not stored refs pending

Training Over Sparse Multipath Channels in the Low SNR Regime

Dana Porrat, Elchanan Zwecher

arxiv:1001.4382 v2 · 2010-01-25 · 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{MQTQJLJGAF2C6E7HL7I2CJ5YXG}

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	2026-05-18T04:28:30.024797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

642704ad2601742f13e75fd1a127b8b985133c8fea366ec91e699fe4da41b13e

Aliases

arxiv: 1001.4382 · arxiv_version: 1001.4382v2 · doi: 10.48550/arxiv.1001.4382 · pith_short_12: MQTQJLJGAF2C · pith_short_16: MQTQJLJGAF2C6E7H · pith_short_8: MQTQJLJG

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/MQTQJLJGAF2C6E7HL7I2CJ5YXG \
  | 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: 642704ad2601742f13e75fd1a127b8b985133c8fea366ec91e699fe4da41b13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8d6a6000cec8c6ca14e116ad24b69934d1e4581b9a01d94280058b27d987b58",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-01-25T11:08:16Z",
    "title_canon_sha256": "2b9c667213517108d8ab411cf57971798e97486cab39598f3d36a27823b4b2bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4382",
    "kind": "arxiv",
    "version": 2
  }
}