Pith Number

pith:I5RMA4U3

pith:2006:I5RMA4U3NJPRSN6SUWHNR5MMYX

not attested not anchored not stored refs pending

Investigating the Nature of Variable Class I and Flat Spectrum Protostars Using 2-4$\mu$m Spectroscopy

Northern Operations), Tracy L. Beck (Gemini Observatory

arxiv:astro-ph/0612171 v1 · 2006-12-07 · 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{I5RMA4U3NJPRSN6SUWHNR5MMYX}

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.

Cited by

1 paper in Pith

The Accretion Process on Protostars

Receipt and verification

First computed	2026-07-04T15:24:58.965440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4762c0729b6a5f1937d2a58ed8f58cc5c787a130de68eae8c080973dd129e9ce

Aliases

arxiv: astro-ph/0612171 · arxiv_version: astro-ph/0612171v1 · doi: 10.48550/arxiv.astro-ph/0612171 · pith_short_12: I5RMA4U3NJPR · pith_short_16: I5RMA4U3NJPRSN6S · pith_short_8: I5RMA4U3

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/I5RMA4U3NJPRSN6SUWHNR5MMYX \
  | 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: 4762c0729b6a5f1937d2a58ed8f58cc5c787a130de68eae8c080973dd129e9ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c0a9d3c7a1803888fc76466be6d476f4487682bf3b8f8c36a4a5c0d43a24d67",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-07T01:35:54Z",
    "title_canon_sha256": "0e100494d1e5b27287e162f054a1a8b7448e71a892cded00a678ed4645bf68d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612171",
    "kind": "arxiv",
    "version": 1
  }
}