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 0x46e1dbe51805e9978b89e1569854e93636468a6d0d5932ad3bae5b4be2a6e9d2. 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/7c61a921-08d7-4670-a62a-7564349abbbe.json and https://artists.proofprofile.net/proofs/artist/7c61a921-08d7-4670-a62a-7564349abbbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Japan Maritime Self-Defense Force Band,Tokyo
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 0xeb58be79976fb13b2a573d24dd00940b2bd8cdc22bf770397f5ce3dab92d44a9. 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/JPPO01343699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef5776e907544a0c7b6f3cf0eee427199ad94630502b4959098187809528b11. 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/JPPO01614153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6e4e290208da8723df0e49b9942c9a9d3cbc424090010735355da174350e22. 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/JPPO01614158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26175293d803332134688f88511e3e0b7aaba8817ea5267fb5dda4e7002bab9. 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/JPPO01500711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beaef80d535a0070409d784326cccdfbb86f2f1e571866bcc51ed607becd47c. 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/JPPO01343692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2be1a4b957e4f42dec2ec31f12e1afb1daa155e9628b572c6a087a064f4b674. 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/JPPO01500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32666d2f1657a1ec05d054b221c1642c9964b3f1b1f2584d0415ce8b7536ea6. 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/JPPO01500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49056c03927e80d50a7a59122e38e7a2fcda948c314cbd247087dfe2fac2ba45. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPPO01500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ce8645d4d4eb01c1cc4ddabf77dbb49b99ef9c4006d5e7d9a5e5b42bccc86. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPPO01343691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fec9dfb8178f93b6742f401bec2686c0adee8f86729194cc57c72b04d24f89. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/JPPO01500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c9236c504ef946ef2438dd3e400059e1a8a4eae2fd55c761c1726eb3511981. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPPO01616039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe899ac9f8ed4a50628269c6b83ac9dab5c35565e4526ba93095e00589200f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPPO01616041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed21d6ee0e29d76120eee5a48c37f3278d202c320ffd6fccec282131e6123891. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPPO01349338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ce8645d4d4eb01c1cc4ddabf77dbb49b99ef9c4006d5e7d9a5e5b42bccc86. 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/JPPO01343691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2508704292e7dafa8f738368487532af4b734348fd828d8cb0edc3a0b06c6ec3. 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/JPPO01343698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb58be79976fb13b2a573d24dd00940b2bd8cdc22bf770397f5ce3dab92d44a9. 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/JPPO01343699.
fostermusic Best Collection 3 - The last letter from Murdoch / Ma Mere L'oye
fostermusic Best Collection 6 - Prayer of the innocence