Pith Number

pith:GDPKCB6X

pith:2019:GDPKCB6XEOSOT4PVGP2KM5R7P6

not attested not anchored not stored refs pending

Reconstruction of a Riemannian manifold from noisy intrinsic distances

Charles Fefferman, Hariharan Narayanan, Matti Lassas, Sergei Ivanov

arxiv:1905.07182 v1 · 2019-05-17 · math.PR · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GDPKCB6XEOSOT4PVGP2KM5R7P6}

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	2026-05-17T23:45:56.224931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30dea107d723a4e9f1f533f4a6763f7faf2939a05b66ac31054a49d8b02557b0

Aliases

arxiv: 1905.07182 · arxiv_version: 1905.07182v1 · doi: 10.48550/arxiv.1905.07182 · pith_short_12: GDPKCB6XEOSO · pith_short_16: GDPKCB6XEOSOT4PV · pith_short_8: GDPKCB6X

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/GDPKCB6XEOSOT4PVGP2KM5R7P6 \
  | 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: 30dea107d723a4e9f1f533f4a6763f7faf2939a05b66ac31054a49d8b02557b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bffcfd4a25dec825060990d04340f582f85e0304df849f2a81597d7b11d6712",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2019-05-17T10:06:14Z",
    "title_canon_sha256": "2c94df1dcaf9409e942871a9f9a00abf3efbfbc509c2e53ba2440bb4837074b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07182",
    "kind": "arxiv",
    "version": 1
  }
}