Pith Number

pith:JEJOJ6VK

pith:2015:JEJOJ6VKBY3HWI6VPG2HWNEBSD

not attested not anchored not stored refs pending

A dissipative time reversal technique for photo-acoustic tomography in a cavity

Leonid Kunyansky, Linh V. Nguyen

arxiv:1507.01324 v2 · 2015-07-06 · 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{JEJOJ6VKBY3HWI6VPG2HWNEBSD}

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	2026-05-18T01:27:07.576617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4912e4faaa0e367b23d579b47b348190fc7866a5e8b9a24fc200f6d20690e2c7

Aliases

arxiv: 1507.01324 · arxiv_version: 1507.01324v2 · doi: 10.48550/arxiv.1507.01324 · pith_short_12: JEJOJ6VKBY3H · pith_short_16: JEJOJ6VKBY3HWI6V · pith_short_8: JEJOJ6VK

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/JEJOJ6VKBY3HWI6VPG2HWNEBSD \
  | 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: 4912e4faaa0e367b23d579b47b348190fc7866a5e8b9a24fc200f6d20690e2c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10a119afbf6436394dce93d70c1a5172f22258c8b4dacd8eb8a0fdde6dfb47f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-06T03:32:08Z",
    "title_canon_sha256": "43b9cc25884fa17f59ec78c819eaa7b3e75e020d7f14715f1802d0a7ce4c021b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01324",
    "kind": "arxiv",
    "version": 2
  }
}