Pith Number

pith:KNYYDP7T

pith:2019:KNYYDP7TC6ZSPC72Z53QUSJ6QY

not attested not anchored not stored refs pending

Relativistic polytrope from the collimation and acceleration profiles of the M87 jet at subparsec scales and thermodynamic evidence for the Blandford-Znajek mechanism

Denis Nikolaevich Sob'yanin (Lebedev Physical Institute)

arxiv:1908.05485 v1 · 2019-08-15 · astro-ph.HE · astro-ph.GA · physics.plasm-ph · physics.space-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{KNYYDP7TC6ZSPC72Z53QUSJ6QY}

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	2026-07-04T23:56:52.717102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

537181bff317b3278bfacf770a493e86223bda8eb3cf0e3e0a69e2fefaa7e6c8

Aliases

arxiv: 1908.05485 · arxiv_version: 1908.05485v1 · doi: 10.48550/arxiv.1908.05485 · pith_short_12: KNYYDP7TC6ZS · pith_short_16: KNYYDP7TC6ZSPC72 · pith_short_8: KNYYDP7T

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/KNYYDP7TC6ZSPC72Z53QUSJ6QY \
  | 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: 537181bff317b3278bfacf770a493e86223bda8eb3cf0e3e0a69e2fefaa7e6c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed7a7b1e84950b0f0b31c20d3aa566b0266604b9fb3125b9d40ac7399b93511c",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.plasm-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-15T10:35:53Z",
    "title_canon_sha256": "6071fc42f32a2bad945915b916a760cd6f04af7b58805ed7f0be6bd54c0bd9cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05485",
    "kind": "arxiv",
    "version": 1
  }
}