TKA is an American freestyle/house boy band who were most prominent in the 1980s and early 1990s, particularly in New York City,and Miami. Their name is an acronym that represents their collective ini
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bd2a7daa23e025259bc6e5754785e5377502583ac3aa5dc15727df2112c89d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d987c2a4-8d14-4b9c-ac4f-905233e805c1.json and https://artists.proofprofile.net/proofs/artist/d987c2a4-8d14-4b9c-ac4f-905233e805c1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdd55be63c9129cdfa92b8d660a84b67386d259aaab89822deeca15f154b731. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USRH11301356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781e098db93b35f8724bfe531221fb3471d16267916816a8f53d077790d47f63. 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/USTB10301261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250af22fbfd85f70af3f6c3f3640d41a5f368e91a9faa4bf640c0a31eb69d68c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USRH11300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44507c1258e5c21693b055d989ab81fed34dcc1d004c49a815ca27362de0744a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USTB10301262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c27725312d2af21809c7549ba0fda59cd0e77c2be33a12d3f318f75ac9aba6. 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/USTB10301260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2859c7c15a46198fd833623b08ce9045efcc3c8fa848474a52e2db2f92be0443. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USRH11300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ab2734feb6e1cd93b9c3cc53fda7d55d293853916fc64d47df843f42b627ca. 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/USRH11300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8400793a7809a92889d0f5561dce0c660cd900b993a60dd4d4e5fa1dce807. 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/USTB10301264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa624235e09953334c3909bd4808dcad8acbddfa74e069e1395245ff249132782. 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/USTB10300337.
La Verdad [Yo Soy Boriqua] Featuring Vice Verse, Luis Perico, Ortiz & Bimbo - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f438f6b8a81f1cd022ab2ca45f09131aee3b828d4434c7abf9472fb710051. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USA2P2024207.
Todd Terry Presents Freestyle Forever (Vol 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a2f02f65e233da4b9d5e4235c5ac8ddd1b3108746fdc751903350002eb7fff. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:41:13Z), 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/USMKQ1400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5112efafc0913e69deb95ae26772c24930303280a83bd6bffec3d3108e64a89. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USTB10500066.
Tony Moran Presents: A New York Freestyle Retrospective
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c671a9094ca1e5f230b969d170efd50bba609cbf47bc706fa5ba3a4373f64b. 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/USGZ21138103.
Tony Moran Presents: Freestyle Hits and Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c671a9094ca1e5f230b969d170efd50bba609cbf47bc706fa5ba3a4373f64b. 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/USGZ21138103.