Pith Number

pith:OJUYXYMT

pith:2010:OJUYXYMT2DIRYLDXWA2IAFZRPW

not attested not anchored not stored refs pending

Exponential instability in the Gel'fand inverse problem on the energy intervals

Mikhail Isaev (CMAP)

arxiv:1012.2193 v1 · 2010-12-10 · 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{OJUYXYMT2DIRYLDXWA2IAFZRPW}

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	2026-05-18T04:06:19.154572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72698be193d0d11c2c77b0348017317d93623417c10684a6ef0a15f9de3ecffb

Aliases

arxiv: 1012.2193 · arxiv_version: 1012.2193v1 · doi: 10.48550/arxiv.1012.2193 · pith_short_12: OJUYXYMT2DIR · pith_short_16: OJUYXYMT2DIRYLDX · pith_short_8: OJUYXYMT

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/OJUYXYMT2DIRYLDXWA2IAFZRPW \
  | 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: 72698be193d0d11c2c77b0348017317d93623417c10684a6ef0a15f9de3ecffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d801b916c3c68a3aee3af9720c445a62d1f0e321ca85f3c5752452315a1b8a89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-12-10T08:02:42Z",
    "title_canon_sha256": "8e2fe1de627214a737cba870c3d1e871bfc9049494eafe5bf14d022b3271cee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.2193",
    "kind": "arxiv",
    "version": 1
  }
}