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 0x34792089988081310d013971d2bb5affaa503e18e0ef08774e25d4f1caa3dcbb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/783489b2-5483-4028-bca6-01ceb7049201.json and https://artists.proofprofile.net/proofs/artist/783489b2-5483-4028-bca6-01ceb7049201.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 0xa7789e395bbd2ce68f98658fb93145ada1f77b2774387301a09688ad4fac98d0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ATM051820004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6edd5f48f6dc025eaf65454116e558eff0a08fa9884a36af69eff6b96531208. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ATM051820006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7451c9fc2bccf688f01ff8f67466d153f4280f1c0c51fe5d67eab8aecbb9937c. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ATM051820010.
Ich will sie immer noch (Sie trinkt und raucht zuviel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6896ca3e85515cfaf52bffa4cc5d3f85ff088cae225b15ce565190636027f58c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:59Z), 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/ATM051820012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c91f620e18c28248d2a0fead53bde4ae52fe26585c561a91cfeeb15cdef16a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ATT252001860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ad72b3eec06056a9fd7b02ad3d0569fadc069af878cc8498d48a71ddf366d2. 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/ATT252001870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c591f4899957f911979c4714a6c5901d6e3fca507d7061f29f20ae3bcf67b3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:26:51Z), 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/ATT252001900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669c2fd696a5707e052f36c6d02413bb94fa93c9488651ee1bc9bcfcfba8c41. 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/ATT252205310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2defb43652f2becc68679b93bcb6aff45ed8a1440ffcd0242998b94e77e583f9. 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/ATT252205320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e33a32a38f6fa9abbc38ce886df85aee7849423ad6eb491f8bde86429f44ef7. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ATT252205380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125b1ddf18dd45bdb625b1668c92b559b3fcad61b992bd20fd879b71b9c68622. 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/ATT252205400.
Richi’s Harmonika Medley: Tirolerisch g’spielt / Harfen Boarischer / Eisschützen Polka / Pretuler Polka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78fa91601796d40d4131d710c37309ef3afdfa7805542ddc30cab89a091fa36. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/ATT252205420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c84c82a041bca0a0f0554b62899495acb285de7648f222c93ba048390bc7fc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ATT252406110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6fe319d547d98b26f9f8a7006a1b4aa8db1ae6b03602ec2b9a63d483da7a30. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ATT252406120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08f45fdc2c64b95bbb7b7132916d2bce6560ae87e588343fafc275604de0d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATT252406130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fa39de9353ad4493f31b41fe545389fab27e9ccfa6f55e89b9f6a4c7e7a94c. 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/ATT252406150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16011509ec8019179743869eadabed37366b6782af60a2608e647babae750b52. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:28:02Z), 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/ATT252406160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf42c624ac5dc009482a73b26d1df02366a81f8ed4610dbe1f0a5a9a5759e6e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ATT252406180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69634b603b4ffad2c6cc9651e9f0a4e0fb02fe30e225fe9f0211a9071b6d6ac6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ATT252406190.