Pith Number

pith:IBFR5FGH

pith:2015:IBFR5FGHWOHQL5P3TTSQG3KTAI

not attested not anchored not stored refs pending

A new varied-time photonic crystals

Heng-Mei Li, Hong-chun Yuan, Hong Li, Ji Ma, Wan-Jin Chen, Xiang-Yao Wu, Xiao-jing Liu, Yu Liang

arxiv:1508.04959 v2 · 2015-08-20 · 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{IBFR5FGHWOHQL5P3TTSQG3KTAI}

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	2026-05-18T00:52:23.879621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

404b1e94c7b38f05f5fb9ce5036d5302216383482bc00b0bb4b0e8168d6360bd

Aliases

arxiv: 1508.04959 · arxiv_version: 1508.04959v2 · doi: 10.48550/arxiv.1508.04959 · pith_short_12: IBFR5FGHWOHQ · pith_short_16: IBFR5FGHWOHQL5P3 · pith_short_8: IBFR5FGH

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/IBFR5FGHWOHQL5P3TTSQG3KTAI \
  | 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: 404b1e94c7b38f05f5fb9ce5036d5302216383482bc00b0bb4b0e8168d6360bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271b53838ae948feb1545ce2c6377c2826d058ffcb4eb604bc8a2e55385eb81b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-08-20T11:34:37Z",
    "title_canon_sha256": "84f31b456c4c4d0d319b1889b0ba38f9cde592a4b35d31d2fe1507c79d29772d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04959",
    "kind": "arxiv",
    "version": 2
  }
}