Pith Number

pith:55ETX64G

pith:2012:55ETX64GRZDJ5VIDVTKFQXG3D6

not attested not anchored not stored refs pending

Modeling anomalous extinction using nanodiamonds

Rakesh K Rai, Shantanu Rastogi

arxiv:1204.3140 v2 · 2012-04-14 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55ETX64GRZDJ5VIDVTKFQXG3D6}

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	2026-05-18T01:57:52.531054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef493bfb868e469ed503acd4585cdb1f81f9ff00e22fbb1d626acd14eaefa1c8

Aliases

arxiv: 1204.3140 · arxiv_version: 1204.3140v2 · doi: 10.48550/arxiv.1204.3140 · pith_short_12: 55ETX64GRZDJ · pith_short_16: 55ETX64GRZDJ5VID · pith_short_8: 55ETX64G

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/55ETX64GRZDJ5VIDVTKFQXG3D6 \
  | 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: ef493bfb868e469ed503acd4585cdb1f81f9ff00e22fbb1d626acd14eaefa1c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7e1dac3235be589c189ac7f31404b6ea0e2af343f8dc74118296dbf3bbda386",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-14T05:29:01Z",
    "title_canon_sha256": "f66ec85aeae1558867ca89cd549af204974f1042753f4f41c5062faa99af3f57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3140",
    "kind": "arxiv",
    "version": 2
  }
}