Pith Number

pith:CSIKXC3G

pith:2009:CSIKXC3GUDZJE5H7SAWQ4BLDNE

not attested not anchored not stored refs pending

A New Achievable Rate Region for the Discrete Memoryless Multiple-Access Channel with Noiseless Feedback

Ramji Venkataramanan, S. Sandeep Pradhan

arxiv:0901.1892 v4 · 2009-01-13 · 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{CSIKXC3GUDZJE5H7SAWQ4BLDNE}

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	2026-05-18T02:55:26.283376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1490ab8b66a0f29274ff902d0e0563693edcd407dc3f8a1b8151fcd1c9e37375

Aliases

arxiv: 0901.1892 · arxiv_version: 0901.1892v4 · doi: 10.48550/arxiv.0901.1892 · pith_short_12: CSIKXC3GUDZJ · pith_short_16: CSIKXC3GUDZJE5H7 · pith_short_8: CSIKXC3G

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/CSIKXC3GUDZJE5H7SAWQ4BLDNE \
  | 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: 1490ab8b66a0f29274ff902d0e0563693edcd407dc3f8a1b8151fcd1c9e37375

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5415e1d61c83639099abd916057c5ee4c32242bb7e05f16b07a739c105fc5ec4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-01-13T22:02:14Z",
    "title_canon_sha256": "ef2ff37c02e52277b5b6cfb0be3b198b9ad5240bc38fc0640710fac6a70a5d2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1892",
    "kind": "arxiv",
    "version": 4
  }
}