"Pop Style" is a song by Canadian rapper Drake, featuring American rappers Kanye West and Jay-Z, collectively credited as The Throne. The song was released alongside "One Dance", as singles promoting
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 0x073e97916c962320a95eb754532903dcb7a73ff5095062113795258bdedc24da. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40a6e6e9-63ec-4cfa-acbc-ca7ca7313b91.json and https://artists.proofprofile.net/proofs/artist/40a6e6e9-63ec-4cfa-acbc-ca7ca7313b91.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 0xae698f13125e83b939cd8dd8d9b0a64625d5c821528c48bef1737de576023d80. 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/QMA451400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17863aeba9e083084b1d3f25c6b0ea39495250beaba95d4da38ab4b7eda970db. 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/QZNJV2226470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96181e7510542af5e411a1bfc5211cb727f615c59762c1ffacc84143cd7d1763. 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/QZHZ62212664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0541dc4155590219cb90173808ac11e509f1d4ca2b687af519b1ae4aceb6195. 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/QZNJW2244483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece331ff9b423edfa08d3d23df0883bf850408bc5f2c74922794b224a1559b3f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJX2122405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061eadc9ab01060e746f339630700ecdbdebffe8e6028879e69e52f042166f7. 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/QZHZ32127334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917fcb643b54c4fa8af8389e3c04b82d76d99f2507aa25ce53744508c22356e6. 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/QZHZ32127335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ea65890c4643ec573f199e7bf9ffb031d02278be5bf9b9a08eebf4f8c7e145. 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/QZHZ32127336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1f404aeda52cb632d09c2d84fb7cb4eb0f344b9ca5e3eb175b5f4af98cffd3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHZ32127337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6e9c9847c71955c27c32c9b46c84850b0d8283948d7e7f5c31bde43cb2eaf4. 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/QZTPX2435949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c5880c2eef0da25b1ef363e135f947a0cbf3bb5c6b39ff435b7ffbfa8c52ff. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGLM2409839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c808eb927a5a1d00dfbcf75cbefa2fcbc2510079bcff3101205eb1f596a41f. 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/QZNJX2344260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ba3e85279d1ab938decf0e1229dee4f7aa53c0e65d024c98821ae25eccacbc. 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/US7VG2347051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ca33cdae55fb8cf6567f3f05ca1f127dd0f5408b56bc0afa5e68bfb00971a0. 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/QZNJY2206860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17863aeba9e083084b1d3f25c6b0ea39495250beaba95d4da38ab4b7eda970db. 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/QZNJV2226470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96181e7510542af5e411a1bfc5211cb727f615c59762c1ffacc84143cd7d1763. 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/QZHZ62212664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4118b79a48535e372b382fa682ae108b1404c9d3b8bae7d11d3c1a0f82b1ec6. 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/QZHZ62242827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece331ff9b423edfa08d3d23df0883bf850408bc5f2c74922794b224a1559b3f. 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/QZNJX2122405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1ca79d0b9505c371db8af428cf9bba6374ecd525aa6b31f789e0f1a454950d. 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/QZNJW2120597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74bee18b839c8ea993bb199609fe76bac4f750f8b84d783c7b1f954c1e696dc. 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/QZGLM2104616.