Pith Number

pith:TGD4EAAY

pith:2015:TGD4EAAY7NVJ6COM745BFMHJMV

not attested not anchored not stored refs pending

A Steady-state Supersonic Downflow in the Transition Region above a Sunspot Umbra

Bernhard Fleck, Thomas Straus, Vincenzo Andretta

arxiv:1507.04279 v1 · 2015-07-15 · 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{TGD4EAAY7NVJ6COM745BFMHJMV}

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	2026-05-18T01:29:45.366994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9987c20018fb6a9f09ccff3a12b0e9655bd917b3d4dacffad80530832062103b

Aliases

arxiv: 1507.04279 · arxiv_version: 1507.04279v1 · doi: 10.48550/arxiv.1507.04279 · pith_short_12: TGD4EAAY7NVJ · pith_short_16: TGD4EAAY7NVJ6COM · pith_short_8: TGD4EAAY

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/TGD4EAAY7NVJ6COM745BFMHJMV \
  | 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: 9987c20018fb6a9f09ccff3a12b0e9655bd917b3d4dacffad80530832062103b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "211278a4ecde7395f32bee6c7c663679c06a988faab293ed859bdf6cd233da84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-15T16:16:21Z",
    "title_canon_sha256": "e0a8e337cfbb9d2862187a4b103f0f6c556dcb88931618f7b43bba61546fd0c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04279",
    "kind": "arxiv",
    "version": 1
  }
}