Pith Number

pith:UJ57EPOE

pith:2015:UJ57EPOECX3JU7JKZ4AZO2WZME

not attested not anchored not stored refs pending

Simple Screened Hydrogen Model of Excitons in Two-Dimensional Materials

Filip Rasmussen, Kristian S. Thygesen, Simone Latini, Thomas Olsen

arxiv:1510.06777 v1 · 2015-10-22 · 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{UJ57EPOECX3JU7JKZ4AZO2WZME}

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	2026-05-18T01:21:04.312430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a27bf23dc415f69a7d2acf01976ad96122d6972df4f53570fbccdc4d21c65604

Aliases

arxiv: 1510.06777 · arxiv_version: 1510.06777v1 · doi: 10.48550/arxiv.1510.06777 · pith_short_12: UJ57EPOECX3J · pith_short_16: UJ57EPOECX3JU7JK · pith_short_8: UJ57EPOE

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/UJ57EPOECX3JU7JKZ4AZO2WZME \
  | 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: a27bf23dc415f69a7d2acf01976ad96122d6972df4f53570fbccdc4d21c65604

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6551a725dcc493f47632fc09f5063b80760a4771d1b7369fecdbf01c90625701",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2015-10-22T22:15:27Z",
    "title_canon_sha256": "b300540cf4b07587d82961079acd96fbf6913d4d74ce6692d75aceba4ab58c04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06777",
    "kind": "arxiv",
    "version": 1
  }
}