Pith Number

pith:GN74TMNM

pith:2017:GN74TMNMEWMU63Q57F5BZXBSYP

not attested not anchored not stored refs pending

Explaining negative refraction without negative refractive indices

Gregory A. Talalai, Steven J. Weiss, Timothy J. Garner

arxiv:1712.03423 v1 · 2017-12-09 · 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{GN74TMNMEWMU63Q57F5BZXBSYP}

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	2026-05-18T00:21:09.117296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

337fc9b1ac25994f6e1df97a1cdc32c3c71494cf6a04c89faea7acb75bf76ce8

Aliases

arxiv: 1712.03423 · arxiv_version: 1712.03423v1 · doi: 10.48550/arxiv.1712.03423 · pith_short_12: GN74TMNMEWMU · pith_short_16: GN74TMNMEWMU63Q5 · pith_short_8: GN74TMNM

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/GN74TMNMEWMU63Q57F5BZXBSYP \
  | 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: 337fc9b1ac25994f6e1df97a1cdc32c3c71494cf6a04c89faea7acb75bf76ce8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6aaa341f187dbae6c3657866baf303b1053c0b70d047bd5a4ae61891e48df4a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-12-09T18:47:01Z",
    "title_canon_sha256": "4ee0490477a42c5110bd4c3e4f7476ecd732417f6895ac4d5983a27637aec36c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.03423",
    "kind": "arxiv",
    "version": 1
  }
}