Pith Number

pith:7V5AH6CL

pith:2018:7V5AH6CLO4PCDS6NSBOMSTKELG

not attested not anchored not stored refs pending

Using liner surface modes in ducts to make obstacles reflectionless

Maaz Farooqui, Vincent Pagneux, Yves Aur\'egan

arxiv:1809.03219 v1 · 2018-09-10 · physics.app-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7V5AH6CLO4PCDS6NSBOMSTKELG}

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	2026-05-18T00:06:09.601527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7a03f84b771e21cbcd905cc94d44598f3c55eecbea3ce1f5a9e6f6934c7ff9

Aliases

arxiv: 1809.03219 · arxiv_version: 1809.03219v1 · doi: 10.48550/arxiv.1809.03219 · pith_short_12: 7V5AH6CLO4PC · pith_short_16: 7V5AH6CLO4PCDS6N · pith_short_8: 7V5AH6CL

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/7V5AH6CLO4PCDS6NSBOMSTKELG \
  | 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: fd7a03f84b771e21cbcd905cc94d44598f3c55eecbea3ce1f5a9e6f6934c7ff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebab1e1f4a0e60754d2a4da90c45beb280823a8bbbcb3eb60253f5a8873bdc03",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-09-10T09:47:55Z",
    "title_canon_sha256": "cf19e04809b0d518a37cbc144a2adc01ad3f5032279133a8f55c0e5e9de1ffee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03219",
    "kind": "arxiv",
    "version": 1
  }
}