, officially , was the title of the military rulers of Japan during most of the period spanning from 1185 to 1868.Spafford, D. "Emperor and Shogun, Pope and King: The Development of Japan's Warrior Ar
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 0x56912e16ed922fd7149b3316fe75034a848848a9171942eadc2698b7f0d8477b. 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/064be8dc-124d-4b99-a842-2b0ff87452ae.json and https://artists.proofprofile.net/proofs/artist/064be8dc-124d-4b99-a842-2b0ff87452ae.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 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 0xfb633a8e52125117f4e025abc8fb186dc320ecb76720cb8b636ad93335bfa7e4. 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/NLD682300602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cee3dafefa8bfac9490b8279dfa2cea934ce3010d8a8f0b3e4784351f2a33a0. 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/NLD682202874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07dbb451580f39adfe94e33e1426a42f0ab540eaa9a61f0129d119780f0ae6d. 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/NLD682201533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1040246c4d8427da7f1f3a555f690d8eba8acce3740a14a13ee4ba5a7774032d. 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/NLD682103799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60565a1107d235fb317f1f983b8b3140a43832c99d122f61ca83deee27cecac7. 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/NLF711103242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f367748b58bcf44282b6094cc5c6b3a17c5972c5f5da5479a4c7b09be63dc3f. 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/NLF711001614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6852da6cce9b926a6b1d14409d0ea2010cff22ae46094c001d118ac4ab62c20e. 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/NLF711100422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb23e7bb5cc616597dd0a2446b41757c595f74b07adb8c7a3079dd41c22305d. 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/NLF711000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0603ee36eb695b93fdf8d0084d45dae3c6712c067351781939c5c27d0fc335. 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/NLF711104441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1340da69a24769741d6f549f46dd78622cf4d551fe9ae403b2ee70ef746c946a. 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/NLF711600644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8375a48b90f4f1fa12ae1e53e591ae9cc25d6335500f8107adb20df74d8d48f. 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/NLF711405661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce67bf5e13c3f0b0480ab4756c8d0bff2e609b17a01fb002a57df8fc6f3dd78. 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/NLD682401760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07dbb451580f39adfe94e33e1426a42f0ab540eaa9a61f0129d119780f0ae6d. 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/NLD682201533.
Wolves at the Door (Sunlounger + Shogun Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5995cb4bd8d189133487ea96751cb8b6291d3bdba535f90ea761440a614f3a. 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/NLD682200920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ec0ab8a2c993719b337973c73de9ca4ab77e00273b935d569586d6d7489abe. 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/NLF712003158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe85f0394f827276d82a32e6d0cf121759868af0fbef3569a09b76f3652f0120. 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/NLD681901580.
Big Room Bangers Vol. 3 (Mixed by Pavoire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9d311106e0001264db462f25ba6b6c07c34a5c10c05c61ad2375a892ed7043. 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/NLD682500795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f07d33a474240ca7235ff25a05416fd9b10f8ad88215e2153eaac385d342078. 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/NLF712404903.