Pith Number

pith:M2GGJJW5

pith:2012:M2GGJJW5NVHSTFFGAEUSGHKJY4

not attested not anchored not stored refs pending

High Frequency VLBI Rotation Measure of 8 AGN

J. C. Algaba

arxiv:1212.3423 v1 · 2012-12-14 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2GGJJW5NVHSTFFGAEUSGHKJY4}

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	2026-05-18T01:52:38.330627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

668c64a6dd6d4f2994a60129231d49c73e5e66e0169f7eca34d5c73933cbfb05

Aliases

arxiv: 1212.3423 · arxiv_version: 1212.3423v1 · doi: 10.48550/arxiv.1212.3423 · pith_short_12: M2GGJJW5NVHS · pith_short_16: M2GGJJW5NVHSTFFG · pith_short_8: M2GGJJW5

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/M2GGJJW5NVHSTFFGAEUSGHKJY4 \
  | 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: 668c64a6dd6d4f2994a60129231d49c73e5e66e0169f7eca34d5c73933cbfb05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f474bd93d7531f19e45ec84699b47c9fbf4dfe43499aecc186e8b2f8d110381",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-12-14T09:42:24Z",
    "title_canon_sha256": "cc392e9069fe643f9fded8ad94eb4b9e73548360e29c1517718c14991e5f3438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3423",
    "kind": "arxiv",
    "version": 1
  }
}