Pith Number

pith:QVFAHV3W

pith:2014:QVFAHV3WQ2S7OY2LNBRCLZVW3I

not attested not anchored not stored refs pending

Topological Photonics

John D. Joannopoulos, Ling Lu, Marin Solja\v{c}i\'c

arxiv:1408.6730 v2 · 2014-08-28 · physics.optics · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVFAHV3WQ2S7OY2LNBRCLZVW3I}

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	2026-05-18T02:38:52.829894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854a03d77686a5f7634b686225e6b6da3affb8585d1fc9fc8fc4e6b3f277c158

Aliases

arxiv: 1408.6730 · arxiv_version: 1408.6730v2 · doi: 10.48550/arxiv.1408.6730 · pith_short_12: QVFAHV3WQ2S7 · pith_short_16: QVFAHV3WQ2S7OY2L · pith_short_8: QVFAHV3W

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/QVFAHV3WQ2S7OY2LNBRCLZVW3I \
  | 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: 854a03d77686a5f7634b686225e6b6da3affb8585d1fc9fc8fc4e6b3f277c158

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efc7fa6972ce2829d8a07dcf60c8e25c6208cda73c881c3dc528700396e1b8bf",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-08-28T14:10:20Z",
    "title_canon_sha256": "789a7ab006f2567a2b4901f102bf77924683a31ef084beb5f650e66827efe30d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6730",
    "kind": "arxiv",
    "version": 2
  }
}