Pith Number

pith:MDX5P42O

pith:2011:MDX5P42OT7SIYXSJLTASFNCXCX

not attested not anchored not stored refs pending

Unidirectional mechanical amplification as a design principle for an active microphone

A. J. Hudspeth, Tobias Reichenbach

arxiv:1104.2871 v1 · 2011-04-14 · physics.ins-det · physics.bio-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDX5P42OT7SIYXSJLTASFNCXCX}

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	2026-05-18T04:24:26.686856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60efd7f34e9fe48c5e495cc122b45715fe58312514c3134bb31827f069bd5601

Aliases

arxiv: 1104.2871 · arxiv_version: 1104.2871v1 · doi: 10.48550/arxiv.1104.2871 · pith_short_12: MDX5P42OT7SI · pith_short_16: MDX5P42OT7SIYXSJ · pith_short_8: MDX5P42O

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/MDX5P42OT7SIYXSJLTASFNCXCX \
  | 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: 60efd7f34e9fe48c5e495cc122b45715fe58312514c3134bb31827f069bd5601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c8462780d03039b5351d54622dc14397698c5a173ccbbccb0ba3ea0d526aca8",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2011-04-14T18:56:40Z",
    "title_canon_sha256": "37f8898b1c52b66b5316bcfcb2045ede7a07b5c32b9401d1cc5bfc3333552f31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2871",
    "kind": "arxiv",
    "version": 1
  }
}