Trends of Culture was an American hip hop trio from Harlem, New York City. The group consisted of Edward "Grapevine" Fordham Jr., Marcus "Nastee" Jones and Antonio "DJ M.O.L." Perry. They were signed
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 0x40616c953cb63925e7e559c2c4b2433d69494f235e8ac6e56eb41f2bee91b7d0. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d9f2af5-af29-4e3a-9325-a09253258e4b.json and https://artists.proofprofile.net/proofs/artist/6d9f2af5-af29-4e3a-9325-a09253258e4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Only for the Real Dj: A Premier Selection of Hip Hop Inspired by the Boom Bap Sound
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 0xf0ac1eb2dcddea0b28694359bb837fae252d7d8d44463c154eafd69de82933a8. 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/USI4R1013374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0887bdad4a7846e18f145a2224e04e16857d5cafe49603b19496990bc77b7306. 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/USI4R1013375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb5e2e0f45e7bb8ac4a42ba24610f45eaae87fb1f657607f74f9066d8a1b74. 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/USI4R1013376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa0a8b272283bff4ce3b6310bf1079554196400937a7ef9d0532763121b9baa. 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/USI4R1013377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52597368e8984622b7528ac0550d184004b65a02ef1a6001f1c672f17f19cd95. 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/USI4R1013378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe307cd42202a3d877ed523d8e3ab6878f7e53ed237dc1b751754ea2fba0b2f21. 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/USI4R1013379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947cd0b1225d8e6731992e9763b9e72e9186d0fd7b214bc2d164154dae597b1c. 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/USI4R1013380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b584c449b4de8f53dd317f8a99076df57369886415de6c7a1c7fd23a8ceb6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USI4R1013382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20a18991cbdfd1ee7bca8465778db79e50360aef5c478047b18b2e71c620cf5. 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/USI4R1013383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7008bf5c3f287931031bf378b6db040c6ee63af0aeecaa42755dd326a57d1. 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/USI4R1013384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015a4726470cbffdc6ace44c1273c833ed40f0b8d697375a0bcffa30a15d9f0c. 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/USUM71306231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41208d544470e106569b6c150f20d01183374d27f04cb276783447ac3b0eb5d9. 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/USUM71306233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d78ff6d2ba3e7e3d6db4f0c052aa1daa42f97ef281cf079037ca6655b0af0. 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/USUM71306236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb9b5623a40f3b86eb0a6602429bc7217d60de09227700727ac7b0d484721a6. 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/USUM71306237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f7c3940ed97da25756054ec47b9d9a7317ce9d77a01100f55de587146d49e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUM71306238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a0fceaf731af89cbed3167552233d36ee5d6699055623f2095de2d00eac2b0. 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/USUM71306228.
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 0x54afcf6c675036c86f443fce2da2e9b1be324fc60b3f8669fe657f0cf8b55f30. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USUM71306229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03493fdf846df95cfc611ec7bb16291c4d2a045c41271d3be01c2ed12b585468. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUM71306230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843cf14b932549465cd3a45713e5253da88bf1bfaad8c56603fb01fc698b26c8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USUM71306232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae47385a4f0947f6ab752f0898532670db879f0b31da0c5a076f80264aa439aa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USUM71306234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a7442caa1a59488c0082fc33c78e5f80ff42489054b0b888ae5ec71c30d3e5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USUM71306235.