Pith Number

pith:JVKJV5AI

pith:2010:JVKJV5AIDZYNIBJKQKC2NN4U3W

not attested not anchored not stored refs pending

Determination of time-dependent coefficients for a hyperbolic inverse problem

Ricardo Salazar

arxiv:1009.4003 v4 · 2010-09-21 · 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{JVKJV5AIDZYNIBJKQKC2NN4U3W}

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	2026-05-18T03:05:09.963401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d549af4081e70d4052a8285a6b794dd937d5db8566e81a00e6e9be8c6b9bb57

Aliases

arxiv: 1009.4003 · arxiv_version: 1009.4003v4 · doi: 10.48550/arxiv.1009.4003 · pith_short_12: JVKJV5AIDZYN · pith_short_16: JVKJV5AIDZYNIBJK · pith_short_8: JVKJV5AI

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/JVKJV5AIDZYNIBJKQKC2NN4U3W \
  | 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: 4d549af4081e70d4052a8285a6b794dd937d5db8566e81a00e6e9be8c6b9bb57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08a5529d3f8230665052c53f37e1a9cffe405dfb8a63729d4273701d5dac49c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-09-21T06:07:21Z",
    "title_canon_sha256": "08517752edbc3474bebc63c4cf7b1cca271b312fc412333dd368ee46e89799f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4003",
    "kind": "arxiv",
    "version": 4
  }
}