Pith Number

pith:VHRX6CK7

pith:2021:VHRX6CK7RYDYFN7BH7ZZFYXT7S

not attested not anchored not stored refs pending

Universal image segmentation for optical identification of 2D materials

Joshua O. Island, Kristine L. Haley, Randy M. Sterbentz

arxiv:2103.09449 v1 · 2021-03-17 · cond-mat.mes-hall · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHRX6CK7RYDYFN7BH7ZZFYXT7S}

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	2026-07-05T02:24:03.722808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9e37f095f8e0782b7e13ff392e2f3fc9f0764e978aeadf76fc5b700d200ff6b

Aliases

arxiv: 2103.09449 · arxiv_version: 2103.09449v1 · doi: 10.48550/arxiv.2103.09449 · pith_short_12: VHRX6CK7RYDY · pith_short_16: VHRX6CK7RYDYFN7B · pith_short_8: VHRX6CK7

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/VHRX6CK7RYDYFN7BH7ZZFYXT7S \
  | 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: a9e37f095f8e0782b7e13ff392e2f3fc9f0764e978aeadf76fc5b700d200ff6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c7abdc800476bf6cc3f0a231501967570adc4a67d7f55a37bcd187762a381e1",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2021-03-17T05:26:16Z",
    "title_canon_sha256": "0e3bf0ead22b6eedc886a2a49a4b207ce624b7e82e329f6a59cc34db9d85945d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09449",
    "kind": "arxiv",
    "version": 1
  }
}