Buja ( or ) is a (municipality) in the Regional decentralization entity of Udine in the Italian region of Friuli-Venezia Giulia, located about northwest of Trieste and about northwest of Udine. Bu
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 0xeee03ee21fcbea290cdea032dd7951b9d673a319d626737b1dc91e071be50410. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/822b1531-e8c3-4cbc-80d0-c91881dd2074.json and https://artists.proofprofile.net/proofs/artist/822b1531-e8c3-4cbc-80d0-c91881dd2074.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 0xc8e8895702f88c599fa7affa94e68200895e7b5be88e65a99f1632d0aab32b35. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/TCAGI2217665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85e2c73e727dd1b32f65414a6a8e8ad0f3e927b1f2fe3a9816395b30b7902e0. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/TCACG1566806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d35a8c4d8682f0e542203f02c8b3a0000e8fe15f2cd730337241adf2d0cdbda. 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/TCABB1111251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1664d1428fa9bd668470aaadb8c2fa2d7c6d57b84b6822fc68431db3b90368e8. 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/TCABB1111252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f8c051d42e36baf1be8797f9d3065b273001171da8eba3e588281ba3aed592. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABB1113033.
Gishtin E Tret (feat. B52, Tee & Klepto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8e13bfb70b02eb2552a317928de3fca3e959e233f723672d35549230354cc6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABB1113036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c40c12624b3787a6689bfec57e7f34bd5f8251312ebe50157fbb0fd598073d. 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/TCABB1113037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9335941ee0f633548b638e4c32c43d2ad166811642a2ca48eba8e699d3a8b738. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABB1113039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4842a1b679057d0bf2c751bd88d7a75615d7d3729f8508ed3ae4b49b05bc95df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABB1113040.
Kungjat Interlude (feat. Klepto, Cyanide & the Bloody Alboz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1710a9dc1ff07b3fb66741433d73a0d611ac9cc600ab19ae1fa432e582aa0. 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/TCABB1113042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436d34b2e5dce5da05f4f571fcc2b3dfeb64323b6fbd023837609e69aac4b29c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABB1113045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfd2e0ac5a07f05c2376fc5e87948a46554a9320c0657f8e53aa2276937abd3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABB1113047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e4c6964b3efc22abfa8f4dcb9fe5a8338113bda9dcbb785904faada4c60d4c. 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/TCABB1113048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946bb65275281623dee336899b682e9208ca93b0c6bf788badfd4c323c2e1c9e. 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/TCABB1113052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb829d72a149395e9a814b029122dd20cefae9bbfe9dd25cf727084520fb6e6a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABB1113053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc690218f0689054cca600641e758b2d9f339de9f827f2b2ac4c2be900c99d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCABB1113054.
Lidhje E Re (feat. Barooti, Floetri & Cyanide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b01e6e5aea819ac68c67308843a6b1128b827a99e858ad5dd9e540dea0a7c. 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/TCABB1113055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acf7176c3f7b134769659749376c27ea57abc339b3b0efd71a8c0b94f797218. 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/TCABB1113057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c66394a3ce55d610dc893f20d7e93b830da0b0e6c6cc480c76d346305d850a. 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/USL4Q2485932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dabcdcb0454b19c216da0dd72d891e236be5822e06a0e0a1e5e5329b7b744ac. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCACG1522815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45810c6b63b2c1517e6e2390931c8e27bdad5a563818d5a8888908b9e88cc71. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACG1522858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64706829b93397bcdf331dc32d23cf4872c55b89af544898fc24423a52a4b46. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DEY472575423.