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 0xa6ee8f16c5dbbb0c490596bfb5a8e35a41e652ff26bd4b1a9b53523391b65f71. 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/9eae4dad-bdbe-4fc4-9f37-1dd3815a58d7.json and https://artists.proofprofile.net/proofs/artist/9eae4dad-bdbe-4fc4-9f37-1dd3815a58d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
001 - Fünf Freunde essen glutenfrei - Teil 01
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 0xc1bc30787adb6f9d7a0554c34b2ca214d1c4d9d7e149b2add599c575bde34e9e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DEC711902320.
001 - Fünf Freunde essen glutenfrei - Teil 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecbf55ea122f0501598cd32063bec35cbc2b8f7134e0b6a3b8a643c67bac23c. 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/DEC711902325.
001 - Fünf Freunde essen glutenfrei - Teil 09
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb770ec4d171a54e96262b071f7694c89d494bb608a27c94b194ab9ea1b229a95. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DEC711902328.
001 - Fünf Freunde essen glutenfrei - Teil 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bf8ac9f0fefc78ecc54c3df65ebf2653bf568b119dcf18b2bbea6f133f20f9. 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/DEC711902329.
001 - Fünf Freunde essen glutenfrei - Teil 19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c8c4f6e277fca78f602873dc2eab6871992e950434c5413850af5cc8c5eb5b. 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/DEC711902338.
001 - Fünf Freunde essen glutenfrei - Teil 22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9af6c145a08ffb957f255c22d90b3be0e307cc05b0d8980462b58de4f907b01. 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/DEC711902341.
001 - Fünf Freunde essen glutenfrei - Teil 30
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d28dd0d1881df8ea1911d1807a3e38330f332e42ed27f8a8a21aba29d10bbb. 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/DEC711902349.
001 - Fünf Freunde essen glutenfrei - Teil 35
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b9981fe4f3d5efcb316955ed7956a4637da33ca04ede52190e06429486936. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEC711902354.
002/Fünf Freunde werden Helikoptereltern
002 - Fünf Freunde werden Helikoptereltern - Teil 18
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572facd1ad2dee618369909e66df14505de1bb64deb0b911181db444a47f7ff8. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEC711904436.
002 - Fünf Freunde werden Helikoptereltern - Teil 33
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2b4bc393ea9adda60c8a2f334f5e6a7abae44d8343cf45c3a8783fb1b54010. 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/DEC711904451.
002 - Fünf Freunde werden Helikoptereltern - Teil 41
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24e0d2619be7aacc9d8901ecd8224cbed670c5cec28bc7aa51253dbcc3d4e19. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEC711904459.
003/Fünf Freunde haben Spaß beim Teambuilding
003 - Fünf Freunde haben Spaß beim Teambuilding - Teil 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf186240fa59d74ec6df422d883326ccea1bfa9b17ae053eab93d49ad042498f5. 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/DEC712003443.
003 - Fünf Freunde haben Spaß beim Teambuilding - Teil 31
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f9a431a1b0c96f4e29d7c085bcd60d439592f5a0cab1c4db7b7d35d14f43a7. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/DEC712003454.
003 - Fünf Freunde haben Spaß beim Teambuilding - Teil 32
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fbc5da0276be657aee0a4b4c6103f7b6d38c05cde9e0d9a151b4b83e3a73c5. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEC712003455.
004/Fünf Freunde machen Schluss mit Alkohol
004 - Fünf Freunde machen Schluss mit Alkohol - Teil 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8b603568b074f64053fa42486bc288b8bfc9e431593c99f493f963dabe9061. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEC712008250.
004 - Fünf Freunde machen Schluss mit Alkohol - Teil 07
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e4b5041ee82882fc4525133062667403c9313cc9b6ab6336445b52dd650b19. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEC712008256.
004 - Fünf Freunde machen Schluss mit Alkohol - Teil 35
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a409bf34fdd71763c33000b3f2dc54a2a9157abd5afecbce6b3ce3f6eb35f2. 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/DEC712008284.