Pith Number

pith:7ZEPTFQ4

pith:2009:7ZEPTFQ4I3HIVI6XEQYKL3B7NQ

not attested not anchored not stored refs pending

Stability of Monitoring Weak Changes in Multiply Scattering Media with Ambient Noise Correlation: Laboratory Experiments

C\'eline Hadziioannou (LGIT), Eric Larose (LGIT), Michel Campillo (LGIT), Olivier Coutant (LGIT), Philippe Roux (LGIT)

arxiv:0904.3384 v1 · 2009-04-22 · physics.geo-ph · 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{7ZEPTFQ4I3HIVI6XEQYKL3B7NQ}

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	2026-05-18T02:13:58.263696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe48f9961c46ce8aa3d72430a5ec3f6c20e641066f5fb6b5d948642591504d14

Aliases

arxiv: 0904.3384 · arxiv_version: 0904.3384v1 · doi: 10.48550/arxiv.0904.3384 · pith_short_12: 7ZEPTFQ4I3HI · pith_short_16: 7ZEPTFQ4I3HIVI6X · pith_short_8: 7ZEPTFQ4

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/7ZEPTFQ4I3HIVI6XEQYKL3B7NQ \
  | 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: fe48f9961c46ce8aa3d72430a5ec3f6c20e641066f5fb6b5d948642591504d14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4b9fd61cf89b3a3b47bc357c2214e6cf5ddadbf9acd5aee5fa7450b488bc5f5",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2009-04-22T05:25:30Z",
    "title_canon_sha256": "e900fa488908bc39814f5671e74582cb3b87d7011ccc7efc8156e380c00b6f9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3384",
    "kind": "arxiv",
    "version": 1
  }
}