Pith Number

pith:7DEHKFDT

pith:2008:7DEHKFDT6O4RIHK73WO2ONL2MC

not attested not anchored not stored refs pending

A highly collimated jet from the low mass proto-star NGC1333 IRAS 4B

C. Codella, J.-F. Desmurs, J. Santiago-Garcia, M. Tafalla, R. Bachiller

arxiv:0811.1669 v1 · 2008-11-11 · 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{7DEHKFDT6O4RIHK73WO2ONL2MC}

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	2026-07-04T15:15:58.705866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c8751473f3b9141d5fdd9da7357a60804054ba538e73690061b83c156402be

Aliases

arxiv: 0811.1669 · arxiv_version: 0811.1669v1 · doi: 10.48550/arxiv.0811.1669 · pith_short_12: 7DEHKFDT6O4R · pith_short_16: 7DEHKFDT6O4RIHK7 · pith_short_8: 7DEHKFDT

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/7DEHKFDT6O4RIHK73WO2ONL2MC \
  | 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: f8c8751473f3b9141d5fdd9da7357a60804054ba538e73690061b83c156402be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "373004824e6b142360112c8c5d1498d19b21fc4b12547c54fd5189f8803841e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-11T10:17:04Z",
    "title_canon_sha256": "4986f5950349f681635aa750bc83e2b5e0b70bdd4f9a18ddda4f0cbfa9f9bb50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1669",
    "kind": "arxiv",
    "version": 1
  }
}