Pith Number

pith:KOSC4A7J

pith:2008:KOSC4A7JRVA247WEQ7CRCONLFK

not attested not anchored not stored refs pending

Extended Red Emission and the evolution of carbonaceaous nanograins in NGC 7023

C. Joblin, J.-C. Cuillandre, J. Thomas, M. Rapacioli, O. Berne, Y. Deville

arxiv:0801.3400 v1 · 2008-01-22 · astro-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{KOSC4A7JRVA247WEQ7CRCONLFK}

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	2026-07-04T15:06:59.938210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53a42e03e98d41ae7ec487c51139ab2a9573409d841112a3f8f83140e2e7e534

Aliases

arxiv: 0801.3400 · arxiv_version: 0801.3400v1 · doi: 10.48550/arxiv.0801.3400 · pith_short_12: KOSC4A7JRVA2 · pith_short_16: KOSC4A7JRVA247WE · pith_short_8: KOSC4A7J

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/KOSC4A7JRVA247WEQ7CRCONLFK \
  | 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: 53a42e03e98d41ae7ec487c51139ab2a9573409d841112a3f8f83140e2e7e534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f203605cfb62a6807a5109884a20dfb42bca2bc75cfca30a28029ef91442b07",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-22T18:19:14Z",
    "title_canon_sha256": "ee4f5afdd26404a5d8f7a09dd16794ab388944b28b4ba48f29146f6bfc45cdd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3400",
    "kind": "arxiv",
    "version": 1
  }
}