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 0xfc4301dee2d95c71223f7cb5733c538fc9527f57cfa9ab3bdfca0f3bfe2e9dbd. 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/ad14e7b3-1658-4362-88f3-3b4724a4a3cb.json and https://artists.proofprofile.net/proofs/artist/ad14e7b3-1658-4362-88f3-3b4724a4a3cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rebecca (Gesamtaufnahme Live - Neue Wiener Fassung 2022)
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 0x51e216fd5c49d1ad8eb9f66de30b9dc78220f95971a4da82e3c51101fdcf7dd5. 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/ATM892203509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441de240456f9a70aef3ea504453a3ca3480d74d45b31d130c2827bedd3e2c9a. 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/ATM892203513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff4cff69e387ca22b0fecf002defef5829613c68f6ebd74e74f47f7b0fbbd6a. 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/ATM892203520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded953490ee2e8aac0ca1fc3f88cad435c51d934f63c5750731646fd099c764a. 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/ATM892203521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da3afe8d1936e5ae5f61fa917c6dff86dcc71e6d65132720a41f1dbefcd6307. 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/ATM892203525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7982fe50fbda672d5f57f48b79546cc497196832efccc7edbf73a0e122194187. 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/ATM892203526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab2aa0d1ddd32e757d01a56f9e8b716d82e68cde671834a8e001f83fea40b81. 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/ATM892203528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b6eb8d4b84841791dc32acdb82e1bfb963b0aef6bcf474e8de01f66bf34d3b. 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/ATM892203533.
Die neue MRS. de Winter - Reprise (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9267a8b1c7af9da02be584b2618a55bc87a46f665bc7bcda91aafaab9a87a03. 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/ATM892203538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a7d915e0fd36df4c8926bdaa052a80880fb23b4fd5148e099e84ad5db89961. 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/ATM892203540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c07241776bbac09eca1c683dd410b6b08728d36bd29cbb5314d9a944734a12b. 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/ATM892203543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942a5d56df5f363e978a3ac36b63faa1247573dad325f388ebab3f31452234d5. 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/ATM892203547.
Elisabeth - Das Musical - Schönbrunn Version - Die EP (2024 Schönbrunn Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850bcf28728ee93d70d62c66c1456eb6b294cf0887c9d7492557b61dabfde722. 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/ATM892403738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2560c1e952d0a2bd3708cfdb3268f22758f8624369b26c0463b1fc5159254233. 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/ATM892403740.
Die Schatten werden länger - Reprise (Schönbrunn Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a64d490ccb9931c1b69688521a6ad11854bc41b0db9a4f21ffcebfb5178d9f8. 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/ATM892403742.