Pith Number

pith:MHRAX5ZM

pith:2015:MHRAX5ZMSWYEAAUJNG2YUXC25J

not attested not anchored not stored refs pending

Acoustic integrated extinction

Andrew N. Norris

arxiv:1502.07366 v1 · 2015-02-23 · physics.class-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{MHRAX5ZMSWYEAAUJNG2YUXC25J}

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	2026-05-18T01:35:11.084668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61e20bf72c95b040028969b58a5c5aea7f23fa57b0b168381bc07a159aa1ee33

Aliases

arxiv: 1502.07366 · arxiv_version: 1502.07366v1 · doi: 10.48550/arxiv.1502.07366 · pith_short_12: MHRAX5ZMSWYE · pith_short_16: MHRAX5ZMSWYEAAUJ · pith_short_8: MHRAX5ZM

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/MHRAX5ZMSWYEAAUJNG2YUXC25J \
  | 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: 61e20bf72c95b040028969b58a5c5aea7f23fa57b0b168381bc07a159aa1ee33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9461917f5a1a67b5c85af17066be185b1c5f9c1bdc7cde787c670301ba30430",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2015-02-23T23:47:09Z",
    "title_canon_sha256": "cf7a00723a8796492d322295b4e073881234b13559787e247bd3fff975f0afcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07366",
    "kind": "arxiv",
    "version": 1
  }
}