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 0xcb236393ff0a78a767e4db741db3c8cab11e8507a8cc751d9558807018cf6eb4. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0064d90-3da6-43a2-84af-94bc99e9cec7.json and https://artists.proofprofile.net/proofs/artist/f0064d90-3da6-43a2-84af-94bc99e9cec7.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 0xe21b6c0be0fa2b63ad37afc9770bec03851159a281734ebbf8c3d21f0676ae8d. 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/USCA28900715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8a3e6e85d50ab104e219ffe3357d5a9b95dbc78f168759e40a77283400833a. 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/USCA28900941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce88b63b8e16f5cb10298a402461ec6b20ce12e066b619cfb04a446e67e39109. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCA28900881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587e2421b51ec4a193379e8b4bff6d387858233bdc61d48d880c5d841c690758. 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/USCA29200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08ef27efbd252c73ee1e27530425e77bcdd0a645bc67e3226b4ce42b317e4d9. 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/USCA29301074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45135f67b6173abe4221d1d26f3305084617d2438b52b57d36a19ae20e3d3ae2. 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/USCA20707558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b80ac024ac64a32b40aef60c62802e72686906d26ecabf0666b9cd2ca654bec. 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/USCA29200892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8a3e6e85d50ab104e219ffe3357d5a9b95dbc78f168759e40a77283400833a. 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/USCA28900941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f15bf034d4ee9d7b441cb02ab4004602741a423ce19285cb2ad4b2a1ff21eb8. 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/USCA20700981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d77662e71a7fefebe6aabe09b016d550248bc6353806d266a2f2ceac709c2d. 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/USCA24300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b15bd26338a08c28eb06c3a47fa3733cd10affed9800db208de02f3624b3c7d. 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/USCA20702056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29434f08aa531422e5aaf8de7aba8efa30dbd2110ec250db95fe7862587eb4d. 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/USCA20702059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ddc9aed0e9a89180b074566ea4feef08a8e0ec04204bbd3500289d177d2d8f. 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/USCA20702041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf444cfefdf3bd3a8c7673112e3693359a5e76ee8cd8cf6af8a24cd9a7232b43. 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/DETL61408984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca72d6f78d895408e2153173b4d39c3768edef62ef4e62de1f36fa56870760a. 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/DETL61408977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cff12320e6d7f042bef148056cbc7f307b2e8ae8339908e07b399828dc6b0e6. 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/DETL61408978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0a779d3a35ca74c47ecf96fb5ff1891681f7b236f917480e834493b04f0c0a. 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/DETL61408982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8a3e6e85d50ab104e219ffe3357d5a9b95dbc78f168759e40a77283400833a. 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/USCA28900941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21b6c0be0fa2b63ad37afc9770bec03851159a281734ebbf8c3d21f0676ae8d. 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/USCA28900715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7e6ae2e38efa00231f267aaf00ba9842b0a5b4febd3a6a090d1d7cc8689b9a. 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/USCA28900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eb0bd6e834b2187afbbf06359b679bf56675fcac111efb35c58ce5547f5728. 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/USCA28901246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6a1b9d61ff1c757ef489370a31af2a6fbaf824fe642b00afd89a422ca7ec8d. 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/USCA24600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612e6f936f029a05ac442b68a65443ee3fc05517bc9baa763ba0a853952e9ac8. 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/USCA20804079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4b565074661195121c6e60463ec193f9db5999a94aa434a06ef1c31d3665c4. 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/USCA24500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa7b21eba7e0c5c3f76308fd8daf88e1683010fa23c3f3f2dffa421401ef405. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCA24600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b5da029ac5e50be69dd88354223044ec2918551c8ae8a2f2d78b910b76a1b3. 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/USCA24600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fca919a1ab6f095a5c4ca5b13ef1e55a5fe26ce4d56bd1c3d36dd67da86e4c2. 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/USCA24700407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc1c2f5f44c795da55063397cf2a104dd995326fa97e166737d8cf2593ec630. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCA20001906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb7651b69843a70d211fb3672516faa8e8cfbe048384048dea9e835b80b55e2. 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/USCA20700864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaaa207dd22834aea41af9e06b623efc4c0eda9f0c05b831950e85f6dc2a8be. 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/USCA20700863.
Capitol Sings The Best Movie Songs: "And The Winner Is"
Lullaby Of Broadway - From "Gold Diggers Of 1935" / Remastered 1992
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3519eba51e9a5c0f67b3975c2962d0f18fe110fce574437b16dcf4ef02b07fd3. 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/USEM30700347.