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 0x5f247b5eea459d62d71ce8c49b983aad587894a08c14400431f80803e5ebd3be. 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/130b15cb-7844-4e01-bd04-a41b7c345a56.json and https://artists.proofprofile.net/proofs/artist/130b15cb-7844-4e01-bd04-a41b7c345a56.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 0xdc8b3c70cc6627463d68ee2fd4210076253639a419e38dd6ee879b1f28d36ad1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZK6Q2049110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf508585880e960c26a485a5d04ecaa1b548782aec19feab4e83fa346e255ea17. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZK6Q2049111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20507921c8d08b7f711a49cf0a19c8df002d0ef2775584f66ada2f8775b0dfeb. 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/QZK6Q2049112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34394f9d805a6e559c4c2569d69af9bb1caac785bf339f0810c597e68e41319. 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/QZK6Q2049113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2541775db09a1480acaf8001701bc9b6945f966e131f905716acce041fc273f. 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/QZK6Q2049114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f721474497690a08dfe2b250235806abee59a61cdc917810b70ff311ba4882. 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/QZK6Q2049115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c27df5fd9f8e5824f7dfdeee8149543e7dbc21032b4ac23111b00499d459215. 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/QZK6Q2049116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc209fc5a7ff8619196d82680fdbdc07bacc6b5791463453a4c3f7e84d3b0e3. 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/QZK6Q2049117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933cf155fc9c7def138020cfff5f21172b214cbd98f93fa33b60d20859d0a72e. 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/UKZGC2307211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f30e407af0fc2afc960fcddeb18aef990cc949f227e55ee96a612fe3893752. 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/TCAHJ2398433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137571b0f67580706fd47d8025d21e010a780b41caaa1eef1a76b222b9c7a794. 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/QZMHL2324589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bcb037340b93490e7dc81f686d26ccf15fc62919c3fe3d2ee5ed10a52fdac3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6N22286407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e963172adcad4e8a7756ce67c218c60756f3b8ae0155bdcf5b79ccb094f462. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZS662267266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d3cbb304da6dbab623e39c1a3de717447337fd9ef8d2bb8a5c40ede5af2059. 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/QM24S2107061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76df575fb84160e7ab68b20a4d4b23a0f3be544648982ca863649d8a07ba0cbe. 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/USUM72116013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61244ec1073942803f87af4580e272fa626d45e86d4a156eded184ed53e832b5. 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/USUYG1383292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252ad5dfdcb9c9210e9925b241e7fa546a9d3d3d007e5f86a125e7911eb76c7. 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/TCAEF1943419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece94639cbfebdd4057a276a17285723c81b8344d202bea94265962c12afaf50. 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/QZTGW2401413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b3211dda57ae72e46b4c9b6b958e64140e991949676b909bb4eae50fb226d2. 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/UKZGC2301138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c7b2c98d2a05266d96377403d121cafb68d89420a9d8fe074ccb2a835234e4. 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/QZTAY2264205.
P.S. lets humbly acknowledge the special ones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618674295886a768947e83b954281fd82b9a4621e79c5a3bd82329047e647bad. 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/GBKPL2098012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4553e02bcee6490fe0c49b4e9bb9e1b60a2064b5298c2ee24b2fe0aebfcd1da. 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/USUM71907209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3b650ff4c98747af3547bb912091d8ca4094386bb545c0661c8dfcbcac6c43. 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/QM24S2008419.