Pith Number

pith:Y7B5ZALV

pith:2007:Y7B5ZALVJBDHP4SRGPXPZ7AXXT

not attested not anchored not stored refs pending

High Spatial Resolution Observations of Two Young Protostars in the R Corona Australis Region

Christopher E. Groppi, G\"oran Sandell, Raymond Blundell, Todd R. Hunter

arxiv:0707.2979 v1 · 2007-07-19 · 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{Y7B5ZALVJBDHP4SRGPXPZ7AXXT}

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	2026-05-18T01:09:24.565681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7c3dc8175484677f25133eefcfc17bcc49491328cc60ca157b5f217f43c596e

Aliases

arxiv: 0707.2979 · arxiv_version: 0707.2979v1 · doi: 10.48550/arxiv.0707.2979 · pith_short_12: Y7B5ZALVJBDH · pith_short_16: Y7B5ZALVJBDHP4SR · pith_short_8: Y7B5ZALV

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/Y7B5ZALVJBDHP4SRGPXPZ7AXXT \
  | 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: c7c3dc8175484677f25133eefcfc17bcc49491328cc60ca157b5f217f43c596e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21d38a27924dbe8d45bb4987359b10948e5c25caff68456bd7ec07dc104f0fb7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-19T23:37:37Z",
    "title_canon_sha256": "5278c44a26ba88d8757248ca2e7badb4a77db43a9da6242d73d90f40aa066030"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.2979",
    "kind": "arxiv",
    "version": 1
  }
}