Pith Number

pith:SACVH3GZ

pith:2015:SACVH3GZ27HB2PJTZU5TTHMCYL

not attested not anchored not stored refs pending

Constraints on black hole massess with timescales of variations in blazars

H. T. Liu, J. M. Bai

arxiv:1503.08042 v1 · 2015-03-27 · astro-ph.GA · astro-ph.HE

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

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	2026-05-18T02:03:33.411674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

900553ecd9d7ce1d3d33cd3b399d82c2ff2fdedf27fe0b03dfc0c61fd95649a7

Aliases

arxiv: 1503.08042 · arxiv_version: 1503.08042v1 · doi: 10.48550/arxiv.1503.08042 · pith_short_12: SACVH3GZ27HB · pith_short_16: SACVH3GZ27HB2PJT · pith_short_8: SACVH3GZ

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/SACVH3GZ27HB2PJTZU5TTHMCYL \
  | 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: 900553ecd9d7ce1d3d33cd3b399d82c2ff2fdedf27fe0b03dfc0c61fd95649a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9f86cb350817b098bce40ae61c97093379005bf51a7a44775a9aa62f908043e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-27T12:20:43Z",
    "title_canon_sha256": "90ac01536fb23a7c15c46a9e94bb26922b95a75c48bf24274c612cc644ff58b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08042",
    "kind": "arxiv",
    "version": 1
  }
}