Pith Number

pith:U4HYIUJ4

pith:2018:U4HYIUJ4U2RR5VFUSCB2CXYEF5

not attested not anchored not stored refs pending

Metrology of Complex Refractive Index for Solids in the Terahertz Regime Using Frequency Domain Spectroscopy

Ben Murdin, Guy Matmon, Mira Naftaly, Steven Chick

arxiv:1805.03590 v2 · 2018-05-09 · 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{U4HYIUJ4U2RR5VFUSCB2CXYEF5}

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	2026-05-18T00:05:19.295858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70f84513ca6a31ed4b49083a15f042f5c425deb839c1bb49acb1856aa16c1b7

Aliases

arxiv: 1805.03590 · arxiv_version: 1805.03590v2 · doi: 10.48550/arxiv.1805.03590 · pith_short_12: U4HYIUJ4U2RR · pith_short_16: U4HYIUJ4U2RR5VFU · pith_short_8: U4HYIUJ4

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/U4HYIUJ4U2RR5VFUSCB2CXYEF5 \
  | 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: a70f84513ca6a31ed4b49083a15f042f5c425deb839c1bb49acb1856aa16c1b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc3e90f278df3bfbcc358249ac03bee004d658920f67660bddbdacd4d5c2101c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-05-09T15:36:13Z",
    "title_canon_sha256": "ad2d3115f6d2a83706872ea253c46cce5028ee22fa1c5816031af9b5c3576fb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03590",
    "kind": "arxiv",
    "version": 2
  }
}