Pith Number

pith:FK5SXGJ5

pith:2018:FK5SXGJ5VU2HBT4A4OPD7PETEX

not attested not anchored not stored refs pending

Reconstruction of a compactly supported sound profile in the presence of a random background medium

Carlos Borges, George Biros

arxiv:1805.01980 v2 · 2018-05-05 · math.NA · math-ph · math.MP · math.OC · 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{FK5SXGJ5VU2HBT4A4OPD7PETEX}

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	2026-05-17T23:55:29.425565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2abb2b993dad3470cf80e39e3fbc9325d31e5b9a7c48ad2bc1b859416d1df493

Aliases

arxiv: 1805.01980 · arxiv_version: 1805.01980v2 · doi: 10.48550/arxiv.1805.01980 · pith_short_12: FK5SXGJ5VU2H · pith_short_16: FK5SXGJ5VU2HBT4A · pith_short_8: FK5SXGJ5

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/FK5SXGJ5VU2HBT4A4OPD7PETEX \
  | 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: 2abb2b993dad3470cf80e39e3fbc9325d31e5b9a7c48ad2bc1b859416d1df493

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a2693047e5fddf21272f278e58b12edb4b4bf067fd28654031a9f389814c311",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.OC",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-05T01:02:18Z",
    "title_canon_sha256": "a174187023052e36fc9abaacc9acfee6380066c631144d6af5b0e5107453f647"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01980",
    "kind": "arxiv",
    "version": 2
  }
}