Slobodan Petrovic Jr. (born 22 February 1974 in Trappenkamp) is a Yugoslav-German electronic dance music DJ, producer and is the founder of Aqualoop Records in 2000. He is best known by his alias, Pul
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623289f53059b69e50550a945b8b3ed04832e4853efee21541dabb4673024221. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e80f505-f4e2-4951-b5a8-cd90647e88fc.json and https://artists.proofprofile.net/proofs/artist/9e80f505-f4e2-4951-b5a8-cd90647e88fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Life on Mars (Official Kick Me Back Anthem)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc718e74f8344faebed2d6007abaaa2cde31f9b8d1b95a772e400b002c7c4781. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X41776185.
Sunglasses At Night (Lenny McDustin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a4f5c15d1400ff4aafa3023dace32c4671a910188f930d4b37a329deea50d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX452141902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2b6416b11d847bcac83c4797ed354a9ab9b65dc5b90c21a3c277d72ee1ad8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S2259868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b520719ec72a3f12b461e7a6f35ef221c78dbfac3549be17ca5a704e56a573. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA052407593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457a81ac3b361fff259025a39e79baa9a10d96f9e7541af7a616d89c51c947e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZC62413875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55b997b10aef74f13b9788f00bf41b7a9c5fae9a1a064e79ea894020c1f60d8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA092377828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f852abcce22e57613f5988c5356e103b0f5bcdfb8b8793a381be19f915dbf31. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA052319804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f870288892ceb66935470bd7e3c339e6cf85f1a6c1c9223516f5bc29263d484. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42332658.