Pith Number

pith:IL6FMTAJ

pith:2009:IL6FMTAJC5XPSIUM7OHOHHOF36

not attested not anchored not stored refs pending

The nature of HH 223 from long-slit spectroscopy

A. Riera, C. Carrasco-Gonzalez, G. Gomez, R. Estalella, R. Lopez

arxiv:0902.2704 v1 · 2009-02-16 · astro-ph.GA · 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{IL6FMTAJC5XPSIUM7OHOHHOF36}

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	2026-05-18T02:14:47.605563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42fc564c09176ef9228cfb8ee39dc5dfb2b7c2e30b2f8e6693b20f77d1470bf1

Aliases

arxiv: 0902.2704 · arxiv_version: 0902.2704v1 · doi: 10.48550/arxiv.0902.2704 · pith_short_12: IL6FMTAJC5XP · pith_short_16: IL6FMTAJC5XPSIUM · pith_short_8: IL6FMTAJ

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/IL6FMTAJC5XPSIUM7OHOHHOF36 \
  | 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: 42fc564c09176ef9228cfb8ee39dc5dfb2b7c2e30b2f8e6693b20f77d1470bf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "849404a75767bf11b694ddb03eecd1ca2181ff67ca269b76fea7f3dc128c5cca",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-16T15:18:35Z",
    "title_canon_sha256": "fcf43a2a7328a984ec2083a91e9cfe75980c01295d0048ed0f1017bf04d9d460"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2704",
    "kind": "arxiv",
    "version": 1
  }
}