Pith Number

pith:QXVNAMS5

pith:2015:QXVNAMS56NPPHLOZVMQUZJSEAO

not attested not anchored not stored refs pending

Iterative reconstruction of the wavespeed for the wave equation with bounded frequency boundary data

Kiril Datchev, Maarten V. de Hoop

arxiv:1506.09014 v1 · 2015-06-30 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXVNAMS56NPPHLOZVMQUZJSEAO}

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	2026-05-18T00:44:42.692840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ead0325df35ef3add9ab214ca6440390c288b389c9cca0b0407459e64a782d

Aliases

arxiv: 1506.09014 · arxiv_version: 1506.09014v1 · doi: 10.48550/arxiv.1506.09014 · pith_short_12: QXVNAMS56NPP · pith_short_16: QXVNAMS56NPPHLOZ · pith_short_8: QXVNAMS5

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/QXVNAMS56NPPHLOZVMQUZJSEAO \
  | 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: 85ead0325df35ef3add9ab214ca6440390c288b389c9cca0b0407459e64a782d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82ae4b9386fc0fa73beda89bb9de9399fa4f5cd9186e584678c34ef85ccd9bab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-06-30T10:01:16Z",
    "title_canon_sha256": "874a96054003f163047448351d6cfee68ec030c20c043fb835704d999985d924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.09014",
    "kind": "arxiv",
    "version": 1
  }
}