1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xaa5d9d1b6357c789d54d158e8e401c4108fd8732404d65a8d780c66c6a5554ca. 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/f6e0197d-a751-42b3-8466-c97741d92d29.json and https://artists.proofprofile.net/proofs/artist/f6e0197d-a751-42b3-8466-c97741d92d29.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 → block OTSBitcoinBlock must exist at that height 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 0xbc061783210471dedfcb018a30f545ac86fdb524c23cef97d8af93e72da2ea7d. 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/DELJ81632112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c708bcf7823febf352198d73a71657274b79205a0009306417427b5eb84a10. 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/DELJ81632114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4976c6d04b8ccc03f0f342b17ea55b0fa4ac51926593394c8d3af8b29aafdd5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DELJ81632115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e246755872d17f82e7c92f11c6d22a05b32012987a29e0da8dcd635298934f. 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/DELJ81632117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4257003b1a4569d4e74bda2a21931fd12404d03088a591b6af89a2e77c1da50. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELJ81632118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa343106ab055473741aec95913ad41685e6b16b7f31ccc318cdce722fa326006. 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/DELJ81632121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b42b465087356c94e046b7d6fcb04664397923aeefd8b7ef8418a1b29b5b0e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELJ81632124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b788f74ccab9e498d65cc5377a1cfd5a725b5c0017683401a4d44d2707c5df. 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/DELJ81632126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9689da0e962ffecfe7ac06ea0f4bfa57478b8e85a1bee1f0e7eaac2cfa639c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DELJ81325092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd609a7603fe34c595d0eec5d9af31daffb3d538dd93894e60dbf21b581423b9e. 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/DELJ81325103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1300ac943e1e167a5cae10a4656b6f24b24705f88477c9bc4e35ad338c2427f4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEVY81700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bff3e68878abd31f3e5c7c4af0c0ed935b21e9f6e24b3e8a365ac331721dbe. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/DEVY81700081.
Hier geht es nicht um dich II - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e737462bebdd7233f20ad4f6c8aad690e0e396787eb1a2fa8e07011b321ef82. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEPI81701152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0265fd2012a0cad3905061dec46efc3a7332c87e539c59b792a67c120426a5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEPI81701155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca79523b0ea94327b9971ecdc6c87730e97e0a1dbbef2b684234511fe1a743b. 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/DEBL61244287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdde97d53638a6268bc3f7bcf4a796d2e2334c06d72e181270c351606bfa767f. 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/DEBL61244294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c2a3ce76f68e76317941bb38d698eaa9b9e4db03ae0c0fc240f7f45e522696. 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/DEBL61244297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e245cafaacb49340b37615150a6e9e165360a4fe99b73262eee0541560f3925. 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/DEBL61402092.