Pith Number

pith:MUMTFV47

pith:2018:MUMTFV47IRICALBIDK3YN2PU5K

not attested not anchored not stored refs pending

Online measurement of optical fibre geometry during manufacturing

Antti Lassila, Kimmo Saastamoinen, Maksim Shpak, Mertsi Haapalainen, Sven Burger, Ville Byman

arxiv:1806.07596 v1 · 2018-06-20 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUMTFV47IRICALBIDK3YN2PU5K}

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	2026-05-18T00:12:47.245088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

651932d79f4450202c281ab786e9f4ea8866b859016428020f455973356543ae

Aliases

arxiv: 1806.07596 · arxiv_version: 1806.07596v1 · doi: 10.48550/arxiv.1806.07596 · pith_short_12: MUMTFV47IRIC · pith_short_16: MUMTFV47IRICALBI · pith_short_8: MUMTFV47

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/MUMTFV47IRICALBIDK3YN2PU5K \
  | 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: 651932d79f4450202c281ab786e9f4ea8866b859016428020f455973356543ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b65c970be898e8b33a5b9f34b2562c120462527a9fe917d3283d7446169e805a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-06-20T07:55:31Z",
    "title_canon_sha256": "fdc284ed52059f706dfd168416ed7c8ff8633783c902ca70740b8a9aa9369b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07596",
    "kind": "arxiv",
    "version": 1
  }
}