Pith Number

pith:KTRPTI4H

pith:2010:KTRPTI4HVFGQA2XRC3RSLUMK7N

not attested not anchored not stored refs pending

Calculated Ellipsometry of the VLTI AT mirror train

Richard J. Mathar

arxiv:1006.4145 v2 · 2010-06-21 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTRPTI4HVFGQA2XRC3RSLUMK7N}

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	2026-05-18T04:25:37.837998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54e2f9a387a94d006af116e325d18afb44ce83df322dd1ab0c44bebd02dee72c

Aliases

arxiv: 1006.4145 · arxiv_version: 1006.4145v2 · doi: 10.48550/arxiv.1006.4145 · pith_short_12: KTRPTI4HVFGQ · pith_short_16: KTRPTI4HVFGQA2XR · pith_short_8: KTRPTI4H

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/KTRPTI4HVFGQA2XRC3RSLUMK7N \
  | 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: 54e2f9a387a94d006af116e325d18afb44ce83df322dd1ab0c44bebd02dee72c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acdf782e53ddfb3885e7e150b217cd0cce5d3e71fab6fa390a59d582fba2cbde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-06-21T19:41:14Z",
    "title_canon_sha256": "850cbbdcbdea74d99ac26e6216b8dd14dacf97d24eeadb10c224750033c8c826"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.4145",
    "kind": "arxiv",
    "version": 2
  }
}