Pith Number

pith:NATXN37R

pith:2019:NATXN37RENRBC3ULRMESP3BDCK

not attested not anchored not stored refs pending

High velocity string of knots in the outburst of the Planetary Nebula Hb4

((1) Institute for Astronomy, 2), (2) Department of Physics, (3) Observatorio Nacional/MCTIC, (4) Instituto de Astronomia, Astrophysics, Brazil, Ensenada, Greece, Mexico), National Observatory of Athens, Panos Boumis (1), Remote Sensing, Rio de Janeiro, Sophia Derlopa (1, Space Applications, Stavros Akras (3), Universidad Nacional Autonoma de Mexico, University of Athens, Wolfgang Steffen (4)

arxiv:1901.05767 v1 · 2019-01-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NATXN37RENRBC3ULRMESP3BDCK}

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	2026-05-17T23:54:15.221394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

682776eff12362116e8b8b0927ec2312876d375ba76727ebfe3300a44e1569ec

Aliases

arxiv: 1901.05767 · arxiv_version: 1901.05767v1 · doi: 10.48550/arxiv.1901.05767 · pith_short_12: NATXN37RENRB · pith_short_16: NATXN37RENRBC3UL · pith_short_8: NATXN37R

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/NATXN37RENRBC3ULRMESP3BDCK \
  | 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: 682776eff12362116e8b8b0927ec2312876d375ba76727ebfe3300a44e1569ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdb1a480b2ad0d7aa0b049cd8418223f3dc5aa1b5e99d2b53aad719cf7074692",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-17T12:43:18Z",
    "title_canon_sha256": "181205a70f9faf0d7eb0681a92d108c7b01c1f60b5d4ce65ceca9cf4440cd1e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05767",
    "kind": "arxiv",
    "version": 1
  }
}