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 0x729a22f5f3be9017d3b6da06ab217d52df29c3efee8fd674c35791c6d5af926e. 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/255709c1-b842-4930-861b-28e7e621d17b.json and https://artists.proofprofile.net/proofs/artist/255709c1-b842-4930-861b-28e7e621d17b.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 0xe48265f47b4020df986f6ae9670c5fa6e38cd47dd01985f53e6a7c08da2115ec. 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/DES811200134.
Du wirst sehen / Gespaltene Persönlichkeit
Gespaltene Persönlichkeit (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1317b12aa984958e7258a9287f08c4631ab67d6da6ea6e6ac7260f3ddfc1e61. 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/DES811200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91e0d6fb1cfed9b11b672ee2e8ed88d0c20ac27f7d61a9e0fc3d887dbbf62c5. 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/DES811200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb98baf9e5e3270f5879bc946620dd8c28bab98b307efd8637949fd6a4cbb643. 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/DES811200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ceef2bad2835732850a02d582b44ba35c08ffc6d91ad0f93f2bb6076fc4247. 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/DES811200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc6aa518ae0814a91fede9cbbae92b2b256e78ff52f177c202405d6191445b5. 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/DES811200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab336fd6e64a9f1086cc82f609ea3a914ce73faecf30fd141032bcf35f57589. 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/DES811200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29123d0897be230031ba69bfdc71014414384d195f30f3d257dcbfa538a74572. 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/DES811200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6a385822cff9805194fa14924ebf4272f6956472bd2480391a02f74d647cf. 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/DES811200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ef2a3af21cff362fad144ddc39fa07caa962e44adfa1d53df76063e72b0bb8. 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/DES811200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b301705043717945b6bfd8db216be4b6dd7d8ee39d301b868e3ed542d85cb5. 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/DES811200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42772f92e236e7f5ca83584a5aaef21888a51d8acfc4c29d99fae9da3f43b03a. 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/DES811200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c518e465812943c23518629068c8cc1981f54520446cf6d6c5673df652cc28. 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/DES811200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd867dcdb2fb0ca25d3130b66d61254527da03e3c23d899f9f5c21b6220777c0f. 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/DES811200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3530d3130ec43a5671af2b093a7bc50ef4acc477eec25c340dc53f922ce343c2. 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/DES811200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2fa98ae7ba97ebe8ff1fcdad05fa54639aa35f8b540139085adba3168a03a8. 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/DES811200150.
Du wirst sehen / Gespaltene Persönlichkeit - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce542c0b10d956208443ff502de5d79604b527feab13e0fcb606e6a18c16ef3. 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/DES811200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474b98c6b1ffe01c75dcace69dc7c078f7155365b248e71af0c515950d90159f. 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/DES811200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8348a6273f291f6bdd0a50c421971d9de2ff2d453b63dbbf964170123b4fc07. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DES811200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63e1d172dafca8f2ec153d8940dab1534fe9ca290cbeecdf2732d03705c6882. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DES811200154.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch