Pith Number

pith:S22RBW5V

pith:2013:S22RBW5VNQEA2JTQKQ2UOL5REP

not attested not anchored not stored refs pending

Determination of structures in the space-time from local measurements: a detailed exposition

Gunther Uhlmann, Matti Lassas, Yaroslav Kurylev

arxiv:1305.1739 v2 · 2013-05-08 · 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{S22RBW5VNQEA2JTQKQ2UOL5REP}

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	2026-05-18T03:22:18.283398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96b510dbb56c080d26705435472fb123d4ca539695b12b2767c28d2b1423f8a2

Aliases

arxiv: 1305.1739 · arxiv_version: 1305.1739v2 · doi: 10.48550/arxiv.1305.1739 · pith_short_12: S22RBW5VNQEA · pith_short_16: S22RBW5VNQEA2JTQ · pith_short_8: S22RBW5V

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/S22RBW5VNQEA2JTQKQ2UOL5REP \
  | 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: 96b510dbb56c080d26705435472fb123d4ca539695b12b2767c28d2b1423f8a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac18b3dfeeea9055c8ba54ab01002837e52e4842ab462ab9cbb15fb67374d454",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-08T08:00:45Z",
    "title_canon_sha256": "c327509f7d8b62b614fb66c1ba8fbb22d9c47dd2d737c435ca808a5a163e3288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1739",
    "kind": "arxiv",
    "version": 2
  }
}