Pith Number

pith:IT64CJBL

pith:2021:IT64CJBLY2TPXP6XFZE65ZHDT2

not attested not anchored not stored refs pending

Deep learning enables accurate sound redistribution via nonlocal metasurfaces

Bin Jia, Hua Ding, Nengyin Wang, Qian Cheng, Xinsheng Fang, Yong Li

arxiv:2108.01568 v1 · 2021-08-03 · physics.app-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{IT64CJBLY2TPXP6XFZE65ZHDT2}

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	2026-07-05T03:03:04.284105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44fdc1242bc6a6fbbfd72e49eee4e39eacb177d8218dffedb4750d4e011c51ab

Aliases

arxiv: 2108.01568 · arxiv_version: 2108.01568v1 · doi: 10.48550/arxiv.2108.01568 · pith_short_12: IT64CJBLY2TP · pith_short_16: IT64CJBLY2TPXP6X · pith_short_8: IT64CJBL

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/IT64CJBLY2TPXP6XFZE65ZHDT2 \
  | 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: 44fdc1242bc6a6fbbfd72e49eee4e39eacb177d8218dffedb4750d4e011c51ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c63cd2cd149c45cf44774236d6f975c28b842a9f49bf5116d1c7a9b10f4bb9e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2021-08-03T15:29:20Z",
    "title_canon_sha256": "ba356743e792751cfa0371adce9cb7b24f99a86546d58ff732365df8aa98b564"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.01568",
    "kind": "arxiv",
    "version": 1
  }
}