Pith Number

pith:BE4FZOSE

pith:2007:BE4FZOSEFKEXX3IS63GNPZC4VR

not attested not anchored not stored refs pending

Negative phase velocity in nonlinear oscillatory systems --mechanism and parameter distributions

Gang Hu, Hong Zhang, Pengfei Li, Zhoujian Cao

arxiv:0707.3906 v1 · 2007-07-26 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BE4FZOSEFKEXX3IS63GNPZC4VR}

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	2026-07-04T17:04:51.034470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09385cba442a897bed12f6ccd7e45cac652f751b1ce45bebbe1be1ad609de563

Aliases

arxiv: 0707.3906 · arxiv_version: 0707.3906v1 · doi: 10.48550/arxiv.0707.3906 · pith_short_12: BE4FZOSEFKEX · pith_short_16: BE4FZOSEFKEXX3IS · pith_short_8: BE4FZOSE

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/BE4FZOSEFKEXX3IS63GNPZC4VR \
  | 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: 09385cba442a897bed12f6ccd7e45cac652f751b1ce45bebbe1be1ad609de563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14d954b8f98dec19c74dc5dff4d1377e5e332142c748786f3a0fd44e83a3ddeb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2007-07-26T12:11:14Z",
    "title_canon_sha256": "f26b5de29444f861913877d76896248dbfefe4efe9630f65c1db623975459fe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.3906",
    "kind": "arxiv",
    "version": 1
  }
}