Pith Number

pith:O2A7B3BV

pith:2018:O2A7B3BVCD6WXZW4HV5JHVQDEE

not attested not anchored not stored refs pending

Al$_x$Ga$_{1-x}$As crystals with direct 2 eV band gaps from computational alchemy

K. Y. Samuel Chang, O. Anatole von Lilienfeld

arxiv:1805.00299 v3 · 2018-05-01 · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2A7B3BVCD6WXZW4HV5JHVQDEE}

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	2026-05-18T00:09:14.268654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7681f0ec3510fd6be6dc3d7a93d603212f572e90a1e301f3ab3faf0397b606bf

Aliases

arxiv: 1805.00299 · arxiv_version: 1805.00299v3 · doi: 10.48550/arxiv.1805.00299 · pith_short_12: O2A7B3BVCD6W · pith_short_16: O2A7B3BVCD6WXZW4 · pith_short_8: O2A7B3BV

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/O2A7B3BVCD6WXZW4HV5JHVQDEE \
  | 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: 7681f0ec3510fd6be6dc3d7a93d603212f572e90a1e301f3ab3faf0397b606bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dabf575244bcaa0a7dab9926b33a5c221332c760d99639acdb03194a43ec2e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2018-05-01T12:57:34Z",
    "title_canon_sha256": "c410d65b1e377cb610bf8ca633493dda4a53b1899e8d9cf862298276a048df3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00299",
    "kind": "arxiv",
    "version": 3
  }
}