Pith Number

pith:7R46PMNP

pith:2019:7R46PMNP2PI6XW7B5PXXX4AHOR

not attested not anchored not stored refs pending

Unique determination of the damping coefficient in the wave equation using point source and receiver data

Manmohan Vashisth

arxiv:1906.08987 v1 · 2019-06-21 · 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{7R46PMNP2PI6XW7B5PXXX4AHOR}

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	2026-05-17T23:42:47.159109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc79e7b1afd3d1ebdbe1ebef7bf00774634de0308b7135dc63cb63eb054c0982

Aliases

arxiv: 1906.08987 · arxiv_version: 1906.08987v1 · doi: 10.48550/arxiv.1906.08987 · pith_short_12: 7R46PMNP2PI6 · pith_short_16: 7R46PMNP2PI6XW7B · pith_short_8: 7R46PMNP

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/7R46PMNP2PI6XW7B5PXXX4AHOR \
  | 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: fc79e7b1afd3d1ebdbe1ebef7bf00774634de0308b7135dc63cb63eb054c0982

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01efa897cc72fbf9af09882ecce256e9764871d164c668ad919ac0bc3f340d99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-06-21T07:28:34Z",
    "title_canon_sha256": "8cf592c15563705e18fb5ea708b9edfd9597d3dd8d43020a389808455d1fb9c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08987",
    "kind": "arxiv",
    "version": 1
  }
}