Pith Number

pith:VGAHWC7B

pith:2007:VGAHWC7BCFSTZPLGBDEDB6JZ4N

not attested not anchored not stored refs pending

A Comprehensive View of Circumstellar Disks in Chamaeleon I: Infrared Excess, Accretion Signatures and Binarity

Alexander Scholz, Alexis Brandeker, Duy C. Nguyen, Ivana Damjanov, Marten H. van Kerkwijk, Mirza Ahmic, Ray Jayawardhana

arxiv:0708.0266 v1 · 2007-08-02 · 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{VGAHWC7BCFSTZPLGBDEDB6JZ4N}

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	2026-05-18T02:35:30.672049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9807b0be111653cbd6608c830f939e36d5dc455feb71f74d4a757b3b9a1004e

Aliases

arxiv: 0708.0266 · arxiv_version: 0708.0266v1 · doi: 10.48550/arxiv.0708.0266 · pith_short_12: VGAHWC7BCFST · pith_short_16: VGAHWC7BCFSTZPLG · pith_short_8: VGAHWC7B

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/VGAHWC7BCFSTZPLGBDEDB6JZ4N \
  | 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: a9807b0be111653cbd6608c830f939e36d5dc455feb71f74d4a757b3b9a1004e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54a7d62e53dfa104dee797dbfafefb2b8594e19112b3c22e118e50ab462e4df3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-02T03:56:54Z",
    "title_canon_sha256": "7eb29256ab0217fb50aeb1ac21dadacce3e4217592bfff9260921b16b88fb1ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.0266",
    "kind": "arxiv",
    "version": 1
  }
}