Pith Number

pith:D4PXLVXQ

pith:2012:D4PXLVXQONMDW4QYIOPKA5KQC6

not attested not anchored not stored refs pending

The 217.5 nm band, infrared absorption and infrared emission features in hydrogenated amorphous carbon nanoparticles

Anming Hu, W. W. Duley

arxiv:1210.3222 v1 · 2012-10-11 · astro-ph.GA · cond-mat.mtrl-sci · 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{D4PXLVXQONMDW4QYIOPKA5KQC6}

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	2026-05-18T01:53:56.748729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f1f75d6f073583b7218439ea0755017a43e6be83ce2f9afacb322c3ee538d26

Aliases

arxiv: 1210.3222 · arxiv_version: 1210.3222v1 · doi: 10.48550/arxiv.1210.3222 · pith_short_12: D4PXLVXQONMD · pith_short_16: D4PXLVXQONMDW4QY · pith_short_8: D4PXLVXQ

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/D4PXLVXQONMDW4QYIOPKA5KQC6 \
  | 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: 1f1f75d6f073583b7218439ea0755017a43e6be83ce2f9afacb322c3ee538d26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16a3e036d5a5fc228f50ebba7a458415741b545dc9e1bc4b2353b3fb35e3646a",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-11T13:04:44Z",
    "title_canon_sha256": "80b283addcf3ee1f3865fb3681c2c6f207da1db7bcd1aa4f8317a899efc0592e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3222",
    "kind": "arxiv",
    "version": 1
  }
}