Pith Number

pith:QYDD44AZ

pith:2009:QYDD44AZGSQD2Q54DISMY5HBT5

not attested not anchored not stored refs pending

First detection of acceleration and deceleration in protostellar jets? Time variability in the Cha II outflows

2), (2) Dublin Institute for Advanced Studies, (3) Centre for Astrophysics, (4) INAF - Osservatorio Astronomico di Roma), A. Caratti o Garatti (1, B. Nisini (4), D. Froebrich (3), J. Eisl\"offel (1), L. Calzoletti (4) ((1) Th\"uringer Landessternwarte Tautenburg, Planetary Science, T. Giannini (4), University of Kent

arxiv:0906.0561 v1 · 2009-06-02 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYDD44AZGSQD2Q54DISMY5HBT5}

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	2026-05-18T02:13:29.618398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86063e701934a03d43bc1a24cc74e19f4ea4f12c071b75d488cdbe99915511a1

Aliases

arxiv: 0906.0561 · arxiv_version: 0906.0561v1 · doi: 10.48550/arxiv.0906.0561 · pith_short_12: QYDD44AZGSQD · pith_short_16: QYDD44AZGSQD2Q54 · pith_short_8: QYDD44AZ

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/QYDD44AZGSQD2Q54DISMY5HBT5 \
  | 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: 86063e701934a03d43bc1a24cc74e19f4ea4f12c071b75d488cdbe99915511a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e37751976bce77bc4dbbb15cd46ef9e43382351495d387471f0f200dab6cc949",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-02T19:22:05Z",
    "title_canon_sha256": "08e59eab6ab6fea5d2b8a0856007cf02bd9a33fee8fcc5c1acc2c7d106614b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0561",
    "kind": "arxiv",
    "version": 1
  }
}