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 0x41277d8d1b8f388242a4199243a0c41f47e010ddb08204c5b2dc7b1227d0349f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/886db9b8-e3b1-4354-80c5-19fdc875490d.json and https://artists.proofprofile.net/proofs/artist/886db9b8-e3b1-4354-80c5-19fdc875490d.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 0xb74bf9b55b908d82e4a6a9004aee3e0bab0c0a3816fb8779155e72ee0eb109da. 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/JP92N2433029.
I WANT TO WELCOME MY LAST DAY ON PEACEFUL TATAMI
MIGHTY (feat. Earl CHINNA Smith, KARAMUSHI, KEYCO & MOTOHARU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdec4d8230797c2d3d8dee34f19bbda6a82b0b5c267b3aacdabb78a1f4a2866. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPB602150578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79e455ad376c665ce402654520a697fe9bf90e6b63c643420de538384ee20ce. 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/JPB602154623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1986e542bb8edbced76c8f771aa1253517e66fdc3d39133119e6c27fba437744. 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/JPB602163217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85dc05647321e53a6750aebffc878034b0aa330502c7435e03387b3b317b9c4. 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/JPB602147237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36fe7810698db077048a67cf52b146adef89b6fb3f00038313fcca64217e7bf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPB602177915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f41485179469d7c53605aa4d37f2bdf2aca0526020e18c0e13b1811725542d1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPB602181886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4208bcc840fec1cf9fe184098991f11194967a667f65401b519b359f818f5d34. 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/JPB602189080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e3374e655e9dee7807cc5e444991722efdba8183e7b18c3af5aea899a51c56. 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/JPB602193471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcc9da7d063d29a37813d11ff8daf0c50aca40b52445e73bc9a2757f05b9dd. 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/JPB602194277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f318a0a79dd8a087041942d759fb0c4aa5a3266384392f3d3503cbb1116bce. 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/JPB602147238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa105da8090f267445a35bbfea9e837550fe8eaa548df46aaa0dbffee2452f4e7. 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/JPB602144277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d469409e3dbfc9ad86365ca62f0a6be5e697a2fe2b37a506aac9dca844bd82f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCJPG1860665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf39f2e18870ecdd4aed48cd9ebfc2365a8d2383266222c0129c001d4a9e057. 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/TCJPG1860667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a31dd5d10f80de885c7519acffc1a24f8e5a19788ded202bf77ef36eefc14e. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TCJPG1860668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579b04db1b2bb32edf5b7aa912b58ede6cdad5534c96bf36dd726d908618ef3e. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/TCJPG1860679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed927e3e02625dc3bdcbc50cbb462f45901205f01db7d8382c5a784f096a8fae. 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/TCJPG1860690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa11b61f9839732668d54130d07b3df5937c5dbd0c74962ccdb1f38c61e0f96. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCJPS2253872.