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 0x15a817ec3a307b59e0288e260303f1a975deb9d78455d8e453821dce4f32540a. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abbed2a3-075f-473f-952f-88ddd4c03f8c.json and https://artists.proofprofile.net/proofs/artist/abbed2a3-075f-473f-952f-88ddd4c03f8c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea06165c90ad5f46805b74e1b4c44e9498b710211a80e0e5acac5315cad45a0. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:37Z), 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/QMEU31616976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0b21212a96b47a9e7b65e715f0996be4c18da81fb620e6066b42ebddd51b3b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T04:59:23Z), 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/QMEU31616977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8214fad658dfa529e14d81d4c6da035a1bb7918f09aac12985da7712e8c1a190. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QMEU31616979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596b71491ce19905501a9968dd512e56edbafa7ae66e82de62b6a8cb319e70dc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMEU31616980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6014c5a22be9a790799f95d7fe3747e1990b3b43bcaceeba9f8be57c0c38f6be. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMEU31616981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e452ecc15c640464f3ccfbd583f990c46c3393ccdfacd27eac8fd04dd80412a. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMEU31616982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d10410ecaba1a0e325052bee2bc12a5b852b4eb0adc03fdeb0d0bfc61468d00. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:54Z), 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/QMEU31616983.
Gru, Gru, Gruselig - Songs Aus Dem Grusical
Alle Kinder dieser Welt! Kinderrechte-Song