Pith Number

pith:TT7FV7EF

pith:2009:TT7FV7EFC4YTT5ZNMOP75COKSI

not attested not anchored not stored refs pending

Dynamic effective mass of granular media and the attenuation of structure-borne sound

Chaur-Jian Hsu, David Linton Johnson, Hern\'an A. Makse, John Valenza, Nicolas Gland, Rohit Ingale

arxiv:0905.1251 v2 · 2009-05-08 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TT7FV7EFC4YTT5ZNMOP75COKSI}

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	2026-05-18T01:29:51.808842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cfe5afc85173139f72d639ffe89ca9219f1a4f718172f084a6e4fdf77a20a99

Aliases

arxiv: 0905.1251 · arxiv_version: 0905.1251v2 · doi: 10.48550/arxiv.0905.1251 · pith_short_12: TT7FV7EFC4YT · pith_short_16: TT7FV7EFC4YTT5ZN · pith_short_8: TT7FV7EF

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/TT7FV7EFC4YTT5ZNMOP75COKSI \
  | 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: 9cfe5afc85173139f72d639ffe89ca9219f1a4f718172f084a6e4fdf77a20a99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a73f94674ade032e9785b95474eb39bc5bf9807984c53280a819f708839554",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2009-05-08T13:44:50Z",
    "title_canon_sha256": "c2cae481b5563699e6c93ae45233cb786aabd7039856d027c85a04c7b287b5d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1251",
    "kind": "arxiv",
    "version": 2
  }
}