FFF may refer to: Arts and entertainment Film festivals Fantasy Filmfest, annual genre film festival in Germany Fashion in Film Festival, a biennial festival in London and New York City FreedomFil
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 0x7afdd819d5ec0c3201199bae85d8e9930cade746ca9c46ad93542e3faec52b9d. 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/0295da9d-35d6-421b-8ad7-55cddefdecd0.json and https://artists.proofprofile.net/proofs/artist/0295da9d-35d6-421b-8ad7-55cddefdecd0.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 0xa71d871253c37ae92790bfbbff40d1a84c72a8fce45764c2c29ca1bf46df1ac0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLCK41022846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972d4c575820f016173ba802368a0c35152b40ccc89ff1af1b685271feb3d815. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLCK41022847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0baa0fa0634687ccca34367d2df358387db8f8ee73213274f8f34a1b465a8d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/NLCK41059557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c144b832040f8ee728c78177a6b8404ce499c5be43b576001df1cc51cd2c1b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/IELXJ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476dfb18f10191b6c8cb1bff7c4511414314da21010a68e80416c01bbdfb1082. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/NLCK41066757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded83b75a593c9c1cebe4aaabc2ba7e924183106b6e8d1dd65db9880d55f05b4. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/NLCK41084002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eff1e93115207d51517cee42fce7a5acb23cfef19995f2497ea164803cb57e5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/UKN6K2202500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94396ccc859054c849286f4571ac88cae718f3aefdf72ec678f3e31ed4d9b9f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKN6K2202501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea624b942347fba645d511ef0853a3cf42f02d77980a1f675f40dad7f4eb6412. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/NLCK42419472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7fe8e380d05b70e102c17af10c814e7a6c4644b4ca58cce055c41c21d9aab9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/UKN6K2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cca667ea55adb8b32230be448895d72c5c34a16744666e8ed5aab22af96794. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBEXH2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ae95b82a339369bfae9891e01c33fca2bb9b943f9f60900658452286ea9deb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKN6K2200065.
UK Jungle Records Presents: UK Jungle Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b706e957863fb7b638a4d7672e0b80866205c070f5b1e7f5eb27d50c59a59c3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLCK41053518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ec2e647f6a433a9a52c5ee299d6b5c9a1c04b2efc359faa3edbca48e83166e. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/NLCK41043954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cca667ea55adb8b32230be448895d72c5c34a16744666e8ed5aab22af96794. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBEXH2100125.