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 0xc199cb13c7dd33e75b87318b36dbf5f38fecbd5e9e031bcc5459d3c37d3d9799. 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/51a72043-157d-4baa-9b17-109dd56ba4c0.json and https://artists.proofprofile.net/proofs/artist/51a72043-157d-4baa-9b17-109dd56ba4c0.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 0xafe7fc3a02dc8d62f9aef222ddffe4b0d4faca77bdaced4bcaff8e50a73d56e1. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:48:29Z), 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/SKA128114906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83792f81f0afcac763850d01df56ca60f15e139a3ffab48f55b065158c3f908e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SKA128225907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7099c6f22b9868783a1a8db69632c999cdce57c99d042d1773b1704ad6dc3bf1. 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/SKA128335415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839f7fb9e078d2f1c7945b37b82613b97286377e6ebf36d61e03ff2362d1b29c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:16:31Z), 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/SKA128673102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad30c63e331dbbfd4b812918667fe3a4b50280e25f3d592ff66fd96229c7144. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SKA128791501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe751a1a1c5dc402d6bb24bce14b3bae24897424ade2c685b98f56585d5bcd641. 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/SKA128791507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dfa9f24d074f286ac4391b9ffb855af3cb585c12309f098e91fc46a1bb2cdc. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:38:58Z), 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/SKA128791510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad09ceb0f9d202e54a6cc4b8dbaebb16bbc183eeb27cefd4634a32479e5daac3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SKA129021407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ba5ae33c91ee22b1530fa9c153293750627f338c84243419fd6bb59532925. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SKA128666402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c03cc9a20c00d1b0e69bf74cccecb558f691ae78bcb62c483a50358703370ed. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SKA112410427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d9618af24f8fb5233c30a343dc986217996830da924f43140dfeb71473ffd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SKA112410430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d77bd3adb7fb0ae0b9b824043b9315d4f2d2a8c2b6b44b0b3d73c90618f5d75. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:37:05Z), 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/SKA127847002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f01378e3762750902b46723cf15f2d6194666c5f828d73a58a23a9fa9f5019a. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:27:37Z), 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/SKA127985801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe06aa939e8c165e21337d881f755c9a2e2cf8a23000b4a9652da569ecae15d9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SKA122500001.
Neberte nám princeznú (piesne z TV muzikálu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6f0dabba07e4a167ef2860a4afd444b26c2c35a1383adbb9fea4557d10eefd. 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/SKA112397001.
Dieťa z dobrej rodiny 2 - Jedináčik ľahký život nemá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124144748a524ed913ef48fe92964b83b0c55f7348023d776ed6ec3807fdb8e0. 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/SKA112397002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb672204dd2120857bd90202e9e245c9d86aac04c4c8e40df281db11c9758e5e. 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/SKA112397005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899765842c0fd3059020cea4efcd1e9b5b4edd27ef2c864a2f83239c6601599d. 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/SKA112397007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5df5d535476e240d55da3fff5a8206ea2aa8fd7297893b2d1048ca679b2368. 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/SKA112397011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6218cd456af097d4603b11bda10c7946d68ef1fff712719f103f45b63ad75f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SKA112397012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce05e5993fc479a9166190ee4a01695d5c473d278a1d734fa5bcd512e33179. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA112397014.