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 0x4dde15d12690c4c0978e697de7f3cf8241b90420b74dfa754e50cf930f8e07ee. 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/829ab6ba-0a41-4bff-8bed-253b955f961a.json and https://artists.proofprofile.net/proofs/artist/829ab6ba-0a41-4bff-8bed-253b955f961a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kao the Kangaroo Original Game Soundtrack
The Sin Collector Repentless (Original Game Soundtrack)
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 0xc4d367677cbd33138cc1d73e6c0be20a196e9f5cbe4c0208220764184d2624b4. 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/PLK412100022.
The Amazing American Circus (Original Game Soundtrack)
My Memory of Us (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cd5aa1e50cda2d341b28511d5156700d59e5a2f90b63d3335e72ad210fd930. 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/PLK411600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcfcf77fd708945e18455e6eddddd451efc7ac3cb79d41842992ea87d1646bc. 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/PLK411600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc244b73b4fd28c2d101b7cd51c0b2eb6e6d67b1ba2609ff84ce9a019429828d7. 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/PLK411600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e15d10f7998c2ea9279b76e176bc89d10e514196ab7ab5a31e2220b11f9cf11. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/PLK411600013.
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 0x5bb83f40950d7c8f44c538fcb9420aed0d40e146b3bcd672b7988f6dc290ac67. 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/PLK411400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0516fa77f198497ac2b3db3d5b71e5fc45ad1e948d6793b2dcfaf1a8cc1d99. 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/PLK411400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6c1745335fc5162e4f300557ef7329de100cbed8e2fc5ce7eb501a0a69d7fd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLK411400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64df6c55e4f7b37002ce553996e8a9d47028f98be7fcd7f7e7cbc2bdc907b0c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLK411400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a6192f304fc099e0f4803ed4edc9098361c3f67c407e9cec750c5064e5970. 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/PLK411400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe6952bb3f01aaca166b47a5da891f5a48f0bf993764c63e99a721576762899. 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/PLK411400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab5da788e11a5a4e9090076bc1eede7a25e8100d257fa4c290cdee3443a3e20. 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/PLK411400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022c5d290c4b8c1767386fd01363f4d1299823dc6320f3354a51313ff1abce10. 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/PLK411400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6692887a0093520b2df64ede222eb6582896428ab72d0d1a39e7658581496272. 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/PLK411400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4bb93a134cfb5000da1e4b0dae67c184602dcbc2f5adeabc64128b28a75da8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/PLK411400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb8c78835e7c8b16f37cef5559560b1be567a04431834880449255ce36177ec. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/PLK411400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dde81196f94d66042cc12362f8343ef425f2785e9dcb68217dfb25dc3916ee8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLK411400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c53375c87fbe717801b9930635b6a8845955e63513732a3621c0a490619779. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/PLK411400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39b5d65be599cf3ec576d1083da0e08d9abfe65ec2a03045e420bc483013ab6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/PLK411400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a6473015ea095e88a77bcf614986fa6d9ffce528c38046b1e49cd22cfa7689. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/PLK411400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8080ada8001240f7fc99b467303b6e6218fd0226892fbd9ab89a649b9647e607. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLK411600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2706e696b678ed767a760689d31534d94936d65d97ad6509cc16679ec13d20b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/PLK411600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1a2a3a0e824c6217b9a74d294f28f398ea0c75e0dedeba9a19ff804d16a589. 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/BGA471521044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1866ec030c5f4502b1acc3088ffdf2b53b6ebd2eb5ecf07370ef17cb8340f1. 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/BGA471521046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee0feddfc1baa2e4c262a6d3dad07e4bbd5b61691fa9eabafc7cdeb3f03bb1c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BGA471521047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9015076c58169cd87d7d37b47c7b284371c51225d3d212c4f63804943cba293d. 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/BGA471521048.
Wanderlust: Travel Stories Original Soundtrack