Pith Number

pith:MGXD5Z4Y

pith:2009:MGXD5Z4YCM4VTMESCBSBFMJHKE

not attested not anchored not stored refs pending

On the determination of the boundary impedance from the far field pattern

Boris Vainberg, Yuri A. Godin

arxiv:0908.0359 v1 · 2009-08-03 · physics.comp-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{MGXD5Z4YCM4VTMESCBSBFMJHKE}

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	2026-05-17T23:44:48.796415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61ae3ee798133959b092106412b12751105aba4deacc5999baa4814891ded19a

Aliases

arxiv: 0908.0359 · arxiv_version: 0908.0359v1 · doi: 10.48550/arxiv.0908.0359 · pith_short_12: MGXD5Z4YCM4V · pith_short_16: MGXD5Z4YCM4VTMES · pith_short_8: MGXD5Z4Y

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/MGXD5Z4YCM4VTMESCBSBFMJHKE \
  | 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: 61ae3ee798133959b092106412b12751105aba4deacc5999baa4814891ded19a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d34651374eaa5a59a8a0c1275102db317b55b7ea52bc2a6b1470afeb19e89eb3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2009-08-03T22:32:51Z",
    "title_canon_sha256": "de4b61e95aeb1b8b7a755b648f12d2a15e43691073a8db33e3b40645b5361929"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0359",
    "kind": "arxiv",
    "version": 1
  }
}