Pith Number

pith:K7UDTKCS

pith:2015:K7UDTKCSXASF3HH2UOF7V352KJ

not attested not anchored not stored refs pending

Optics near an hyperbolic defect

Bertrand Berche, Erms Pereira, Fernando Moraes, Fernando Santos, S\'ebastien Fumeron

arxiv:1510.06868 v1 · 2015-10-23 · cond-mat.mes-hall · 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{K7UDTKCSXASF3HH2UOF7V352KJ}

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	2026-05-18T00:31:31.793667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57e839a852b8245d9cfaa38bfaefba526fc9753feea6c1d712967aa7da2ef7ba

Aliases

arxiv: 1510.06868 · arxiv_version: 1510.06868v1 · doi: 10.48550/arxiv.1510.06868 · pith_short_12: K7UDTKCSXASF · pith_short_16: K7UDTKCSXASF3HH2 · pith_short_8: K7UDTKCS

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/K7UDTKCSXASF3HH2UOF7V352KJ \
  | 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: 57e839a852b8245d9cfaa38bfaefba526fc9753feea6c1d712967aa7da2ef7ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d49ff9cb4796d519241260a71972c5c6f8c2b041c31728085b0c50bd7148775e",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2015-10-23T09:43:12Z",
    "title_canon_sha256": "41fd6779432a493974db82156de0e9fceafd497d32e26fa38e10c70561438ff7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06868",
    "kind": "arxiv",
    "version": 1
  }
}