Pith Number

pith:DBRVBI7C

pith:2017:DBRVBI7CJKBUL44D6BNZ73FUK3

not attested not anchored not stored refs pending

On the importance of producing small impedance particles with prescribed boundary impedance

A. G. Ramm

arxiv:1709.02038 v1 · 2017-09-07 · 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{DBRVBI7CJKBUL44D6BNZ73FUK3}

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	2026-05-18T00:35:50.421118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

186350a3e24a8345f383f05b9fecb456dba0cd570fed13772bdca28d67aae4dd

Aliases

arxiv: 1709.02038 · arxiv_version: 1709.02038v1 · doi: 10.48550/arxiv.1709.02038 · pith_short_12: DBRVBI7CJKBU · pith_short_16: DBRVBI7CJKBUL44D · pith_short_8: DBRVBI7C

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/DBRVBI7CJKBUL44D6BNZ73FUK3 \
  | 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: 186350a3e24a8345f383f05b9fecb456dba0cd570fed13772bdca28d67aae4dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b06b867d069e19244c4cb528ef34f60e060884489d59dcfcfa9988335aaa1f7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-09-07T01:17:07Z",
    "title_canon_sha256": "a8dce13d02c39d9bb2db802f41046dd81d234451037b387dffe1d43250c15181"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02038",
    "kind": "arxiv",
    "version": 1
  }
}