Pith Number

pith:VPQBXWCN

pith:2021:VPQBXWCNT3I3SE5HDFINVQRO7O

not attested not anchored not stored refs pending

Inverted and programmable Poynting effects in metamaterials

Aref Ghorbani, Corentin Coulais, Daniel Bonn, David Dykstra, Erik van der Linden, Mehdi Habibi

arxiv:2102.10904 v2 · 2021-02-22 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPQBXWCNT3I3SE5HDFINVQRO7O}

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	2026-07-05T04:38:41.956141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abe01bd84d9ed1b913a71950dac22efb87b9f7526c677b1b4d1d23eff1cb99b8

Aliases

arxiv: 2102.10904 · arxiv_version: 2102.10904v2 · doi: 10.48550/arxiv.2102.10904 · pith_short_12: VPQBXWCNT3I3 · pith_short_16: VPQBXWCNT3I3SE5H · pith_short_8: VPQBXWCN

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/VPQBXWCNT3I3SE5HDFINVQRO7O \
  | 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: abe01bd84d9ed1b913a71950dac22efb87b9f7526c677b1b4d1d23eff1cb99b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62d161207e50a0bae78f966a002de684206185d48a694e083c187d8103c5bb5b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2021-02-22T11:09:51Z",
    "title_canon_sha256": "a83dd90923d3c662ac7e638befab850562794fa8bda42ca84a85a34de0db1e64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.10904",
    "kind": "arxiv",
    "version": 2
  }
}