Pith Number

pith:YR42GYNC

pith:2012:YR42GYNCSVPSCETXVKY4C5HXGZ

not attested not anchored not stored refs pending

Acoustic Communication for Medical Nanorobots

Robert A. Freitas Jr, Tad Hogg

arxiv:1202.0568 v2 · 2012-02-02 · cs.RO · physics.bio-ph · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YR42GYNCSVPSCETXVKY4C5HXGZ}

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	2026-05-18T03:56:22.057841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c479a361a2955f211277aab1c174f73678e8a05b35e206cab7cae1d85ed3ea51

Aliases

arxiv: 1202.0568 · arxiv_version: 1202.0568v2 · doi: 10.48550/arxiv.1202.0568 · pith_short_12: YR42GYNCSVPS · pith_short_16: YR42GYNCSVPSCETX · pith_short_8: YR42GYNC

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/YR42GYNCSVPSCETXVKY4C5HXGZ \
  | 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: c479a361a2955f211277aab1c174f73678e8a05b35e206cab7cae1d85ed3ea51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0b8724a2524dea26583a2cf10b4a43d322bfdb03f434cdd925608794aa80dd6",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2012-02-02T21:46:18Z",
    "title_canon_sha256": "6b65b0c83c0f2fcb5197c0e5e7d330ff5cd413bd86abd7acd175f812dba0e9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0568",
    "kind": "arxiv",
    "version": 2
  }
}