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 0x4ca11ddbf732c0ae712b0773e0ea2b0939d386e5af686281aabeddc8511a41a6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/903bd3aa-2c12-488a-9138-fa681fa5f6cd.json and https://artists.proofprofile.net/proofs/artist/903bd3aa-2c12-488a-9138-fa681fa5f6cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
játszd le ezt a fost ha kezd kihalni a buli
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 0x3cd9884b848cfefaf53609a7c449b7eb209f9327635692dd52d14f014a9d2ad5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ5FN2029068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065fc57adeabf86199a6dbccb2ba7587c7927d5f9bee8eb40c9fcd7584c46512. 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/QZMHM2383692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bad62ebb66063581f7c0a560dd06de8e035f428dcb9682e4b7a4a9c1799dc65. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:42Z), 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/QZMHP2317001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c1551807c51d60721b8f942f0aa426ac75c5f797b282735144e572f4191d59. 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/QZS652328789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a859cb94f019446f3dc6f748a928e390cb54a1af41cf61356b96ab9a4042b32. 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/QM42K2330403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3156903b0993c736e1091496e282711c67fba48e8db0c9dfbace7cbbd275e3db. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZ8A2412016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e50a5f267d3bd3b4445e06f93257f6ff787f50ad6e58cf733f8c570d46f7ce. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/QZZ8A2412022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3669dc132a985cd37ebc835d921304d400838dd98431463bce135cfbc6d8f8d7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ8A2418471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5802cf6b08024c60473e7e32043a040276387c5dbf9d1fb37831adc4173fedb3. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:44:05Z), 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/QZZ8A2412080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7fe88ef719720bf93a37bcf6279f5db4526095f875179b181061acdd7a7204. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:54:10Z), 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/QZZ8A2412098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842e88ab32074678bb0e29ab064fea958386e7d1aae3023caf751a4f9af586c9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:24:04Z), 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/QZZ8A2412111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305c3be05cd8d1508a50ecf7aa16f62443a44d7dbdf05f2c9ccdb96ff31f753d. 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/QZZ8A2412119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5340d38882ab2c5c09ce38aaa62696bf8846b93e999a1ff9b58cc5f41b284be2. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ8A2412132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd34ca5283e096f709727c56d84aceb24789db537f8053d4149a97aae679feaf. 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/QZZ8A2412138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2443badaa33f92c3d229607c4ecf387132ca27328397c5fd7dabdd4ccbd7ee6. 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/QZZ8A2412148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d24e62b236a9a6bd8b4125cec4d2ab2421feee478b60e03a3b9d10c6e9d07ee. 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/QZZ8A2412153.