Pith Number

pith:MNU4XDRP

pith:2015:MNU4XDRPCVJ2CIWGI2KF52KD6I

not attested not anchored not stored refs pending

The central parsecs of M87: jet emission and an elusive accretion disc

D. Espada, J.A. Fern\'andez-Ontiveros, M. A. Prieto, O. Gonz\'alez-Mart\'in, S. Markoff

arxiv:1508.02302 v2 · 2015-08-10 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MNU4XDRPCVJ2CIWGI2KF52KD6I}

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	2026-05-18T01:19:05.946585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6369cb8e2f1553a122c646945ee943f23c84fb1b642737e54cb151e210144512

Aliases

arxiv: 1508.02302 · arxiv_version: 1508.02302v2 · doi: 10.48550/arxiv.1508.02302 · pith_short_12: MNU4XDRPCVJ2 · pith_short_16: MNU4XDRPCVJ2CIWG · pith_short_8: MNU4XDRP

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/MNU4XDRPCVJ2CIWGI2KF52KD6I \
  | 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: 6369cb8e2f1553a122c646945ee943f23c84fb1b642737e54cb151e210144512

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "383bbdfb7bcf1fb3d261ee4fcae1679e3020ea4af6184c418539cc96306da136",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-08-10T16:15:55Z",
    "title_canon_sha256": "dde296369971a6837e52c1456e2b52355cb2da80c912be1840506a8743c275f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02302",
    "kind": "arxiv",
    "version": 2
  }
}