Actium
type: MusicGroup
description: thumb|300px|A map showing the Battle of Actium. Actium, also known as Aktion or Aktio (, ), is a peninsula on the mouth of the Ambracian Gulf in Acarnania, Greece, and the site of an ancient town of t
popularity: 2
followers: 6
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ed19e625dc335f6c8255e025584ee8d6351d1c7673d8dad1cddb2099012718. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8347f8c-67f2-4776-833a-0cf15facec86.json and https://artists.proofprofile.net/proofs/artist/f8347f8c-67f2-4776-833a-0cf15facec86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
album: Live In CCF Oran 12/07/2023
  type: MusicAlbum
  date published: 2024-07-30
  track: Master Of Puppets - Live
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    duration: PT8M27S
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    by artist: Actium
    in album: Live In CCF Oran 12/07/2023
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      date published: 2024-07-30
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    additional property: OTSVerifyInstructions
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b79031929078c2732ef2ba06a1b28e6833b7167273004ebc67a66d6922596d8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2443151.
      date published: 2026-07-06T06:56:49Z
    audio: Master Of Puppets - Live
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      additional property: Key Name
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