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 0x1db33d754361f2600564782fa6a5fcd76a5c73b22320cd467452d4a4b39b7aaa. 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/ac0bccd2-28f9-427c-873a-5d1cb2d5087a.json and https://artists.proofprofile.net/proofs/artist/ac0bccd2-28f9-427c-873a-5d1cb2d5087a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SLEEP PARTY (feat. mindfreakkk) - Daul Remix
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 0xa4149e17631c435d82d23f89b1a4cbc6cc726a82485ea498e3429adb4cb74e4d. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QMDA72225429.
SLEEP PARTY (feat. mindfreakkk) - Lazywax Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe37b8b3acda1b0cf43f1ae6d50b41bcdda171f57e12224fcd3ecded894ca860. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM4TX2275381.
SLEEP PARTY (feat. mindfreakkk) - Desired Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. 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/QM4TW2284061.
SLEEP PARTY (feat. mindfreakkk) - Dlj Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde87cbcd58288fdbd80854c088b3888208197bf2b032f005e072997a751245ac. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMDA72225431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632983a1baa37b64e7102a5c41b28093b69fdc545a640c8bd648578ef55ca726. 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/JPWP02101326.
SLEEP PARTY (feat. mindfreakkk) [Daul Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4149e17631c435d82d23f89b1a4cbc6cc726a82485ea498e3429adb4cb74e4d. 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/QMDA72225429.
SLEEP PARTY (feat. mindfreakkk) [Lazywax Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd694d30ee6dbbaae1528f391a6e9ef3901e1af98c562cb584614fd5caa84a722. 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/QM4TX2275385.
SLEEP PARTY (feat. mindfreakkk) - DLJ Remix
SLEEP PARTY (feat. mindfreakkk) [DLJ Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. 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/QM4TW2284061.
SLEEP PARTY (feat. mindfreakkk) - DLJ Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0436916d7ae19c82f6e39bd6ea5a8f3a4833bb125aceb14f35801daf92b88779. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QM4TW2297593.
SLEEP PARTY (feat. mindfreakkk) [Desired Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. 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/QM4TW2284061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fec05763ea74502bf800bc651bee8a81647fc90fd000956f1bcc9632a535bb0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM7282325219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b83055d3a470968811be50266b7e60dcc67305236b225b3947be7211ba8d9f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QM6P42203092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb638d9ace4753a89e4e42dc58f35d21213afb04ce7e828fc759456cb36bbf72e. 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/JPWP02000836.
HONEY meets ISLAND CAFE - Sea of Love 8- Collaboration with SHONAN by the Sea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422577335e09d4bb75dbfd9ea46ab9eeff200bdb60d096efc0ce8a5b91569003. 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/TCJPW2306460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1050652f43c859f13f94c3968a010e6fb445444b23ad60924bfb6d1a98bc939a. 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/QM7282423561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff. 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/QM6P42459425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6P42459425.
CITY FUNK -Twilight- mixed by DJ TARO of Rhythm & Groove (DJ MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8129a5f50638c04b3771035d1816e3196be757a6f20f863b2933211f5434ee7b. 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/TCJPA2445759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6bd6baee7b3b25bd3ceab0990138e8580c6e4456f252e12811fdc04f827533. 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/QMFMF2223897.