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 0x4c4ef5e1f75f500e4750beffb0ace6d80e9ff90669c5ef7e295b38779d48d1ae. 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/de7da94f-fe77-4bcd-86e4-d8f16729c905.json and https://artists.proofprofile.net/proofs/artist/de7da94f-fe77-4bcd-86e4-d8f16729c905.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 0x6c4cdf1411a11063e0903727b4482d1bd9bb19012f4e4a7c3f789db19c1b222a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:59:00Z), 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/TRAKF1610347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f630474586aa4949e8bd45ab1047018e9e3d2e6c7b7ea873065cd221ad876b3. 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/TRAKF1610349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8528c321dd4e4da9bd525a0249fc2b3f10aa3d9ac9b49452bb9ecf0f00b80b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TRAKF1610346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa4bed87ae2a71098dd8d1095806666553635fa99f586050fd36b750cfd6b0a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TRAKF1610348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf02b6fc26fff152553671d2bb306c6759d534ef5b7d595948693e99415d7e72. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TRAKF1610350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944ae69b705faa96711ee2362f79ecbd69e1e1ff784f06926feff01bd733e1f9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TRAKF1610351.
Çocuklara Neşeli Şarkılar (Çocuk Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a28d3b3f46bf71f0e3a1d6d0d3649a2211467cb1eec04b0bd336da22fa8880. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:01Z), 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/TRAKF1610515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2bf2cefccea31c0e6f192d1c980bca632a3285616c2124b62b64c3a3389859. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TRAKF1610518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a96727a8bc38eb5c42f233a74906843ef91a4d48ea1b555bea306213ac4b15c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:04:13Z), 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/TRAKF1610519.
HOKKACIK (Bebekler için oyunlu şarkılar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c199709a0b7d0491573bb1bd932e74462d1132386c2bfda1d068b407fca4d1d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TRAKF1614396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98b8dda6b6570ab25577a167b72ca066d5715ed766807be9d6bfbcc923f13ea. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:42:45Z), 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/TRAKF1614397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6415e9088462089fc00e4ae27e11bb5b47691e293fd8c3a6482ddf5d8e39af. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/TRAKF1614399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192fc746dcfe950a9430d6e864d43600e91986c4da27c212061f8602cee65000. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:49:56Z), 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/TRAKF1614401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec16fb7bb6d1c5f08ccdf4dee71ec4e2ae18cc671ccb3361aee8212114925d7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TRAKF1616169.