Pith Number

pith:4DUBFTSW

pith:2011:4DUBFTSWI2IGI77HBJHRIXO3D3

not attested not anchored not stored refs pending

End conditions of piano strings

Antoine Chaigne (UME), Kerem Ege (LMS)

arxiv:1101.4511 v4 · 2011-01-24 · physics.class-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{4DUBFTSWI2IGI77HBJHRIXO3D3}

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	2026-05-18T03:42:46.314463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e812ce564690647fe70a4f145ddb1ec5252a26ff87da4e9208cd6cfae16265

Aliases

arxiv: 1101.4511 · arxiv_version: 1101.4511v4 · doi: 10.48550/arxiv.1101.4511 · pith_short_12: 4DUBFTSWI2IG · pith_short_16: 4DUBFTSWI2IGI77H · pith_short_8: 4DUBFTSW

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/4DUBFTSWI2IGI77HBJHRIXO3D3 \
  | 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: e0e812ce564690647fe70a4f145ddb1ec5252a26ff87da4e9208cd6cfae16265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2476c22adebfc138c4b62b2fd29a3976762b63915bb302df4f92145e33a543d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2011-01-24T12:42:27Z",
    "title_canon_sha256": "54518ab7dc9cce4cc319bab2db65d274febf2712937d185b0d674c42ce1f8870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.4511",
    "kind": "arxiv",
    "version": 4
  }
}