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 0x64c4c7d5308d2b1ff710a4916fc1403297aa8bacb93b87231853844fde2aeffd. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c88342-66c6-4745-9d6f-86fa23aeb81b.json and https://artists.proofprofile.net/proofs/artist/08c88342-66c6-4745-9d6f-86fa23aeb81b.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 0xa1bb2482b30a15fcced5e2d05fa7da314052aa347c9b2396d2342d41f47adccf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPKI08898304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd51f2eb9f8aa32ce1eae50bc32702839dc139d5b7f6c52ede92520f8bf974. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPKI09001070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dd607cf9b7ca1826b9898317920406311683219a654beac3a3f202107dc7df. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/JPKI09001080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a39bb41a315edafcf19d59ca6e8fa4c97544f580b9ad6624c4fa1f10a922dd0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPKI09001090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4892b3ff15c00e494d731d3b5bef278495abf429c3e059c883a2d146d67be7c8. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/JPKI09110350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2c6fb3b22600c49ed16520003ff1b790048eb5a195da41754277bcb4b43b5a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:08:03Z), 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/JPKI01612205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7d821c0b4a0e336d397e51b7ab572d2ff1ca0d8ce1cb2e2e199a17dcfc8845. 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/JPKI09001060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179b18a1998eb0318891eaf01d723001d46a350185c3f941ac730e1274acd992. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/JPKI02214011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548a98de1ad604cc5e584d90c79a8238a5687e063cc70c4ca8728d1dfd7b9f78. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPKI02214015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc5c501b72624fba2127feda3bd17c6f1dbdac6bc4e79aff2002c6de3bbe8d7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPV502500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64819c33975acc83ca5d8a10922afa922138b81d1b60cbf23a697c9e85b98ab9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPV502500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf3028b0f5d0d972eb291f7df0b27225c148b30cb7f38c67daf4796912cc3e4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPV502500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda151d8af80fb9b1226e1c38dbcf4783a9eeb62c9cb3d7254f926316b8d1f984. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPV502500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1553cbf2b0bc6f5cd0060154b6284b199317c87c446bec5ac7b0f253d12652f8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPV502500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbda3c2361e8d81d9ec5b4de123f8311ae8cce3be2c11b87fdca201671c5adb. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:32Z), 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/JPV502500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99da432b5d1fb4aef7b6daae60ec65341580b410932f1352ce25160c8b97f1d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:10Z), 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/JPV502500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64819c33975acc83ca5d8a10922afa922138b81d1b60cbf23a697c9e85b98ab9. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/JPV502500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82152bfec3a24edbf3df967e0dd452b77055b2f59961af3b2a318e07ef3928d9. 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/JPTE02301950.
DJ Notoya Presents Tokyo Bliss - Japanese Funk, Boogie and City Pop From King Records 1974-88
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb2482b30a15fcced5e2d05fa7da314052aa347c9b2396d2342d41f47adccf. 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/JPKI08898304.