, 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fba7ad8c43f22938b3e6df6afa8236533f7bd717075a8067cf8aef0fed2d31. 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/3719323e-c39c-475f-98a9-330633a72ff6.json and https://artists.proofprofile.net/proofs/artist/3719323e-c39c-475f-98a9-330633a72ff6.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 0x88630bc549dafb5293055cd26bccbeb69a4c62a52cbc2f0f06b8aa2c1bf455c1. 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/FR59R1662921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d385562b2e897436aed97c1e3bc2f7ce1dc8faa17de20b72c47e107d3d8650e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:41:20Z), 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/UKJDV1700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0959fee0c0933afe1e70b9c6556b13dbb550ca921a41de5c3421beb1314cb9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UKNGC2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161848c6670c1039e9a8859f681b850dd2528e1ffa027abe40b102832f49ee9b. 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/QZHN82388486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e4190a539414749e52912fa572e84880ef9d5a2af22f6a7fe4d13345008f7. 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/QZHN82388490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6469418344b5c4dae20388faea688c0d5128ff59d0b13e5636818cad7ae565ff. 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/QZHN82388493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c85c182ec758c52f07104ac95a4172d316f91194a42b2c8760266a887efeda6. 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/QZWFG2301369.
Scotland Cypher Pt. 2 (feat. Oakzy B, Sherlock, McRoy, Melroze, Ransom FA & Shogun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b840337e3cc3d55a368558c504789fcca36e98563feaa361bd43d460f5f8050. 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/ZZOPM2106418.
Scotland Cypher Pt. 1 (feat. Shogun, Ransom FA, Sherlock, Oakzy B, McRoy & Melroze)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ec43bf0151e970ae49f391b68b9b1cbf6a11b73ccda03d18a8775718ecd3e1. 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/ZZOPM2106406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e3ce26c34cbe6cae835383f55a9b102074af2c111fddb3da954306826f3b7a. 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/QZES51807280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c712d52361dcfd3587c4496ff1ed389ed581be3bfa62a1aca346cdef34c3879. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZHN82388485.
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 0xe381d983cbc53c4bd68cf943b5b13fa158b012072b6a5b6ff9f6adb5f20c6fd3. 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/QZHN82388487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340bd18b30f580a3d1e4a71e7421b76c74e4fa20a616d637facdefb7d5f12427. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZHN82388488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb634fde037a74d7d9e3f4bd9eb4d34f789463cacbbd0ba30a54103d1ab46d246. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZHN82388491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0223013763c61d5287af54239cbcc08ab5794c1fd0876353c0b1838ffe9c5132. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZHN82388492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f511dda20bede276eab72a9de93c4d39cf3b1b4425bf4ee92f65184a4a88b8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZMEM2270368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfcadb31e69e1eadaf2675eb1be5a498357fb1c10f58d507cce573b0f5b0abe. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZES51807268.