1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9e813dff343e8aeba528d7fe1440d96e8edf09d157d4068b69074742e45981b6. 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/dd147ca1-e3ee-40ce-b573-20cf51e009fd.json and https://artists.proofprofile.net/proofs/artist/dd147ca1-e3ee-40ce-b573-20cf51e009fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Portraits, Vol 1: A Collection of Modern Contemporary Piano Covers
Portraits, Vol.2: A Collection of Classic Rock Piano Covers
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 → block OTSBitcoinBlock must exist at that height 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 0x8356d5016cf8e902eb78ebfcfc4cd2bdfeb7cd75f369629e5ed23bf9429421a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKG8V1834224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbf84e9d2f21cf5909f6fa41b314d0fd611c8de41025442dc03034cf6cf8032. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UKG8V1834225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920c427563d40b0279f6b5ec00b476f24e417d8142c6550b1175fd1c25a2559a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKG8V1834227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac5c9adc00568d2f5805685d9a6d954cec88ae84613a63c975bd5b929ba58c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKG8V1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7dd0f330cf25258e3f3d3538a5dd62c1f493102c8948c383e2ea415e9349b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/UKG8V1901687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bae524f58a5efde8ab5583de106de8560f447d4fcfb75547f3e73bb78ed1b1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKG8V1901690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bf5cda69f331398208f1833068f72fa170759b914ff1e27a446cadafdb7dc7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKG8V2000703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305fc4fde9fc092e95f3d028090b05832693509552d416d62493da4a4d13f6de. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:32:39Z), 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/UKG8V2001071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4842092a2a8acb6314827f6721ba0d40086ba6c077273d5657ebeacabdacf18. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UKG8V2001073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072bfec2084fd882d9af6437493e7da9e7b61300c194dcf8834f3d2f5ad5799d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKG8V2001074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ab4e35d82e2872be24b8c060693b9bdffe8d7ae278d2ec6e3dafff07591f46. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UKG8V2101949.
Everybody Wants To Rule The World - Piano Arrangement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2699a0d54823777fc513017c1f39374b3c32f5d33d43232e1fea38faf146f4. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/UKG8V2100736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69286afc6ed3fad92897e431a56a404f4660de973cf6320f97fa30b415e6b772. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGH1733277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27c30fa572fc9180630b8c7272fdd861afdd45acc6a4585393c689a0c528ac3. 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/USA2P1386374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe08940d8b3f6cd09c93dd8bd11db0053061ab645a6a44c64f03256ad56ee5c8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P1386379.