Pith Number

pith:6HRDAKWZ

pith:2017:6HRDAKWZIRB6G3MAPKL5XRU5EG

not attested not anchored not stored refs pending

Momentum and rest mass of the covariant state of light in a medium

Jukka Tulkki, Mikko Partanen

arxiv:1707.04509 v1 · 2017-07-14 · 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{6HRDAKWZIRB6G3MAPKL5XRU5EG}

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	2026-05-18T00:40:17.966395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1e2302ad94443e36d807a97dbc69d21a10a2dd3672958c34be59272052f4a37

Aliases

arxiv: 1707.04509 · arxiv_version: 1707.04509v1 · doi: 10.48550/arxiv.1707.04509 · pith_short_12: 6HRDAKWZIRB6 · pith_short_16: 6HRDAKWZIRB6G3MA · pith_short_8: 6HRDAKWZ

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/6HRDAKWZIRB6G3MAPKL5XRU5EG \
  | 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: f1e2302ad94443e36d807a97dbc69d21a10a2dd3672958c34be59272052f4a37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "258682570c23772e0aa619ba249a09e03c4ae43e36b47e4430b33f19a93b4813",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-07-14T13:51:23Z",
    "title_canon_sha256": "e70861889c6be14fd6acea2b40c86b3012d72b7ede895c8e0efccffa8cd288a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04509",
    "kind": "arxiv",
    "version": 1
  }
}