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 0xbfd34130da1256ee08965e4272dee39faa58020af0b7c3f1909c79b6175b9cc1. 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/41a26e40-2172-4dda-a71d-10abd80fb2cf.json and https://artists.proofprofile.net/proofs/artist/41a26e40-2172-4dda-a71d-10abd80fb2cf.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 0xe3a1f6404dd025b47bc53a156d28257e1fd9889128a00ba9dcd56589209c5068. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/DEF067102230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272a7a42b6a05c997f4ef16ac60ae075ccd5b4e5560d392ae00690fa9f7a2036. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEF067207140.
Wann Liegen Wir Uns Wieder in Den Armen, Barbara (New Version 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b46b58568ca5ce1347dc580b6a59c18497ece1f635637494ae5f2e34c19bd. 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/DEC719300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac551696836984f25d2e504509e286401bbfc29d6d7f581ec63e45e4057fe4e2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEC717800018.
Ich tausch den Sommer gegen 7 Tage Regen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfa30d57e162cb19d93868475fef214f471c1a9e96c6b48eb0efeda9fa03de6. 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/DEC717800019.
Man soll die Feste feiern wie sie fallen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ac748daaade20fcdd8542508c48c7ad7e30c051a71a548062734ff0152bb3f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEC717400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd875ebc9c34c89fcac2b3314680a250da70780f479e23b034341e177dfcb23. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEC717400006.
Wann liegen wir uns wieder in den Armen, Barbara?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95ea5fcc58bae6f24f83a6dfd866a9d4a40fe7d3151f530801a274ae5e98d1c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEC717700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e6506779b9f7c2b1d7229adebb0b0e37162a695799e310c27a49706c3f7a26. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEC717600031.
Ich mach ein glückliches Mädchen aus dir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404de34a69ab3d55106fdf223a40f8fb2ea63c46ebdb269240f46afea6305519. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEC717400026.
Von Allem das Beste (Best Of - Seine größten Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd56e1a38c771cd3fa13a8196f7e25ceb00dc7113eda41e13dd12a154a4ded7b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEC710200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404de34a69ab3d55106fdf223a40f8fb2ea63c46ebdb269240f46afea6305519. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEC717400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e6506779b9f7c2b1d7229adebb0b0e37162a695799e310c27a49706c3f7a26. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEC717600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95ea5fcc58bae6f24f83a6dfd866a9d4a40fe7d3151f530801a274ae5e98d1c. 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/DEC717700039.
Wann Liegen Wir Uns Wieder in Den Armen, Barbara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa38ae097dc59d93e54e0c6cc823847c0a415a18ae30f16d4a880988fcc1ccf. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:52Z), 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/DEZ921200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fd80777dcaadefbab15ef7934b2cdb9d80bac7420cda63d87d6b7975608f6c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEF709700129.
Du kannst nicht immer siebzehn sein - Re-Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d758314cb78cfdc6bec921e51ae32fbd0839324cd8c811b46f8224d9203a9e. 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/DEF709600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd875ebc9c34c89fcac2b3314680a250da70780f479e23b034341e177dfcb23. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEC717400006.
BIG BOX - Legendäre Original-Alben - Chris Roberts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f7201f307672c24ed39edca3a65f4d0f459dc96e53e2d4ef1300ad12106166. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF067200350.