FCL may refer to: Computing Flow chart language Framework Class Library, a .NET library Free Component Library, a Pascal library Fuzzy Control Language Sport 1. FC Lichtenfels, a German foo
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 0x75b6c8e0d20bff08e4ff4d38c3d1d01b20786c0198d26b6851cc1009a6103a9d. 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/b7ee8027-be4c-4f1b-a71a-702106268d8f.json and https://artists.proofprofile.net/proofs/artist/b7ee8027-be4c-4f1b-a71a-702106268d8f.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 0x918f59ed3b9f415d24fcb53abf8b66c9b6e7a3f64be153954a10952fac4a780d. 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/BEQ750900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d3027c5ac9525c9513b49fc07f3c5fa4f1360e175ed7a1f167b896ce80c49c. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/BEQ750900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918f59ed3b9f415d24fcb53abf8b66c9b6e7a3f64be153954a10952fac4a780d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BEQ750900029.
It's You (San Soda's Panorama Bar Acca Version)
It's You - San Soda's Panorama Bar Acca Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3479c87bd1c3e5841479584addc3e066ed549a80514b7203de6b5210af5e511d. 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/GBCPZ1206693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3f54cf4da1977855027504982ade2522c35e59644aefbe614630d46fc12e73. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBCPZ1306899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b70ff147f375d1018b57425283ba65d8c36919d63b249311653f4db8e6bf7d7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBCPZ1306920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642157677b1621b9ce3b6f6056cc7ff96e09227281567b557514dfc035e95702. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBCPZ1407843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5df622caed217d543879a6d25d9f27c1415f1d078a2491b3e5a7b86176898c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BEQ751400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccdffce5061d1662ac1082376927c5fc3b7a0c9f0553d039401170db616e91f. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/BEQ751700025.
The House Music Track - Kai Alcé DISTINCTIVE Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7551d129b0da47df6527e764bea704bb659e4cfb415472b71fbb137de09d63fa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BEQ751700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c53c9ece71de932752abe2719db97b999c375ae31dff1282f5b4f8efcf98b75. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GBCPZ2423896.
It's You (Alex Wann Remix & Red D & Lady Linn Live Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642157677b1621b9ce3b6f6056cc7ff96e09227281567b557514dfc035e95702. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBCPZ1407843.
It’s You - San Soda’s Panoramabar Acca Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1559df96f836aaac08fb3b9c35b2392e5a9cbdb2d350a061199917565863a07c. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/BEQ751200007.
The House Music Track - Kai Alcé’s DISTINCTIVE Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7551d129b0da47df6527e764bea704bb659e4cfb415472b71fbb137de09d63fa. 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/BEQ751700026.
Better Dayz / It's You (San Soda's Panorama Bar Acca Version) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13da14b1cd8bb87a514d8fab5ec8fcab190c7f16bb0998b007925a739abbbf01. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBCPZ1915738.
It's You (Mousse T.'s Teef Vocal Mix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77359fd30961b6b4e1dafe3d5b115effbf39011d554da3a6eef318a33765a880. 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/GBCPZ1916402.
Glitterbox Radio Episode 001 (presented by Melvo Baptiste) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb1d0543c618e10ed69f4c4a6cf254b44b812e9c28344803f0c4e50393fbe4f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBCPZ2017504.
It's You (San Soda's Panorama Bar Acca Version) - Mixed
Defected 20: House Music All Life Long, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9828dab406d3efd0c177dd0be2eaccdcdfbf7bfc76840f5139a94e9a943f181. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBCPZ1814897.