Pith Number

pith:7WHBB6OI

pith:2020:7WHBB6OIBVDZDBCMWWM2CZDSR3

not attested not anchored not stored refs pending

Low optical polarisation at the core of the optically-thin jet of M87

A. Merloni, A.Y. Fresco, J.A. Acosta-Pulido, J.A. Fern\'andez-Ontiveros, M.A. Prieto

arxiv:2005.14719 v3 · 2020-05-29 · 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{7WHBB6OIBVDZDBCMWWM2CZDSR3}

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	2026-07-05T01:10:39.565306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd8e10f9c80d4791844cb599a164728eea5eaac8030343a0e9bba57849ed3cb2

Aliases

arxiv: 2005.14719 · arxiv_version: 2005.14719v3 · doi: 10.48550/arxiv.2005.14719 · pith_short_12: 7WHBB6OIBVDZ · pith_short_16: 7WHBB6OIBVDZDBCM · pith_short_8: 7WHBB6OI

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/7WHBB6OIBVDZDBCMWWM2CZDSR3 \
  | 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: fd8e10f9c80d4791844cb599a164728eea5eaac8030343a0e9bba57849ed3cb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eff603ab8d19ed637e6f3165ec1d20ef5c40df4cc778e38d67753efc6fdb36c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-05-29T17:59:59Z",
    "title_canon_sha256": "57e75db1a3276d249a84617a25c0dcd755b3ba0b43d29592137b768a554b57d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.14719",
    "kind": "arxiv",
    "version": 3
  }
}