Leteći odred is a Croatian pop rock band from the city of Osijek that was popular in the mid-1990s. Its name means "Flying Squad" in Croatian. They formed in 1991 with Denis Dumančić. The group's ser
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 0x76c0502b267fd7cacda64110583f5b750eb7de91b101bc227b72e249a1f5dc65. 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/419aea78-b50e-4100-a5db-a484820ece04.json and https://artists.proofprofile.net/proofs/artist/419aea78-b50e-4100-a5db-a484820ece04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb48c51c5f820f58e7fac3c8c207b29986f64599e0e444751c5d233acc8efff7a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/HRB901400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe645664c8875bf26d4868a371f3ab467aa9deb01d02e97a3dbcfd32dc22d1643. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HRB901400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de3a85ee631bcec5500f1a38c5770b6d3e6340e04ee6b243fb7962eee6dec59. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/HRB901400480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0076b761ae04482b7d55cf8397d36d4f5b25e2ebd0ba24fa77777516ea74d1a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HRA041266599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09a3f8a5c2bcbe1a551c9f53b982741836dbaccfdba8a721790d53d887fb26. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/HRA041269187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39053d35a05a37e8295f899b2e6c9c4947a73fa5ec253832946703ee596279ae. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HRA041164642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859edc73fb4f3e1b14ae4ee38ccf358d19d28156838e36b2a7ee5485f78a223. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/HRA041372232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5963761fb33022914d7db215444b9b30634550b827e060282d01577c81f6c886. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/HRA370200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8709bc08d2aa8f98ab9923f389a0305762ee707f3e5e85daa44e4e1103da779c. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/HRA370300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b29a5ee7314720f6abf38a78f2dd1bbab45a64185ea4add33859a0b62d97d20. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SIA421000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15af8e0fb03cf7f7bc48894603e18fb8c124fb52b8c7e8355a43b12d7a5d2d71. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/HRA041787116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd052fc69380bdb0d21f6215bbedaf98846383929c49056ec92b1c3ab7a6e3f6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HRA042401316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859edc73fb4f3e1b14ae4ee38ccf358d19d28156838e36b2a7ee5485f78a223. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/HRA041372232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf499b8fef22d18ad0e03aa428a3f6b0b9d0760126986b5b184cb9598de3b35. 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/HRA041370916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70c78990f1e5f6aa127b808921f2c8cc0bb7c2f9b62a3209d84bf38e5ef1bee. 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/HRA041374887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bfd9d1a9d6bd68a1e1897db8b5fc6cd299a11fc6d9cc4453f5dd75f2fd3275. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HRA041686105.