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 0x2cbad472d3320f962702b1bf174d65ab89990d71df76ad4b2b50e5e46790cbd1. 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/91d1cfb2-32f5-4fde-81cd-1c02e861eaf8.json and https://artists.proofprofile.net/proofs/artist/91d1cfb2-32f5-4fde-81cd-1c02e861eaf8.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 0x01f17b3293f03cf893df5ae7317c18295fa9d3529e4bdb8449ce547c02c3be87. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTBC2425591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd499466eb5bafa86719a3e3cc771647587c32a20f1a34c2a64c409c88bf26ee. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTBD2486429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92727dd7eff71933aeba092e251a40297c2d316f89b42bfcc18b4ad133d27e33. 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/QZWFF2467506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1725c89cdcbc6904182e385ae742666ec9209ea7b42d019d81b8063c5ea02de1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWFE2477709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca8f9d593250cbabac28fe2df719c68fd2069d7f45fc52f30fd2a3e80aed3d. 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/QZWFE2477234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97716ee1c31a91e02e6971eecd8c65d1d5342294d2271f76c2e0b127330d3874. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZWFH2483336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc81b0542ab746140e5ec04c3010743ad3902c4d31d587eb9e983d59ab17b81. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QZWFM2450800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1ffac923fa87be16879ab80cf5f308e6f6b9a6f6ff919434b8763d8ab1e6d1. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZWFU2432232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2313bf55ac58b3e290c88cdecbfe7ac677076de7327a3ab8db85158e3ef91413. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZ772402654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f0a683f366f7c48ad10f6514860a16d8501a9d5ae694e7647ec90c482283c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ772440357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349f18921fbe7cbcb4c157b3f6b70a006fc37c0ca4251d2a5eb21cc49a9826ec. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZZ7M2485996.
Italo Disco (Modern Talking Style) danekoo1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5479354dd7f2d22064954df8ad28298b2f19aa16d88da263ccc69eeb8a86dc. 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/QZFYY2585759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ecfd365099589f8db6ced50f4b7a58e77b472fecebc328d35497ef5424ca7b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ32599125.
Bolero (New 80s Instrumental Korg Style)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e15a9f709fb8e8362906184ba206fb8cb5af8050846af81aa615f725cb0116. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZFZ42582418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f75faa0b43ed6afe1a356314317a082856c647e1eb43d2cec2aacac3cd69fa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFZ62559651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f11576f4184daa9152ff353ed071b143b91e6f7cbe330d1e6a2f746b73dac41. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZDA62529603.
Just to Be in Love (Chill out & Danekoo1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1c840f50352af10771bdfe3ffb2079fea034c072d029d6a6f92419720a660f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA82593398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a5554e34244a73ec582e275ce2ba1d5a3ce5f7efec0a8efaf7615bfd5ec411. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZES72580925.
New Italo Disco Style (Flute Theme & Danekoo1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd245055adc4427b9f7ed5dbe9ed81fdb342dc1ef2ba2383cfe232be7783d2672. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES62579907.
Alan Walker Diamond Heart (Korg & Danekoo1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31819863bcf1e969c8b56f0ca69fc9381924a4ccc964ecddb9c113b3165780. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZHN82597868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178db53b5b330ba5135cdf002626257e47ed9a82bd6976043ff8ebecb2e9ddda. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZHN42597327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5636dbce2de5890735b17e630aa932710f7552accc454a3b22314ce7cdc31e0a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN82508179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac88e4b8b42f4620daa292d4ca12ee2a1f38e9188001042a541c810dc1a1bc1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZRP42564626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b331ac229d036b7302da963f8182581568e85af82f669f8695defabbfbee6f4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB72551195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1084f2ff16091d607a555522b7eb5e6ead4d94f7ac70f02670384f152a4a639. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFF2527168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615b1999e3c3a0e9737a33aa268c336e01d425300d1d990cc93b385fc240cf66. 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/QZWFF2527162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cc906b365b5e1be23daea200296297a452241d94d19efac2ec3d3e9fa2485d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFL2589729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57b82f84d828f811a74b8b0d8f3779c44273574b1f6d37813bb5f86ee583644. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZWFX2531629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e6d0c9323eb7833d174a042f7c09ea82ce709b3109855ec095507e371d79a1. 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/QZZ7S2544409.
Atmospheric Melody (Remastered & KorgStyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f5efb6d8827d85a08e45debfccde271109ff4e1e8cd5d5629ad11bf18e99ee. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QT3F32551937.
Forever Young (Italo Disco & Modern Disco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45795003fd18951aa0ecbfd6db1999f55dd235ab1477ef5e22bf0c95bc5de7ef. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZPJ32519858.