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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f5be749c4a226f1c68959a01d327116fa48d1eec97269463b23cd63457b5c4. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d36e4fd4-b65f-4f06-bb72-5c3107037317.json and https://artists.proofprofile.net/proofs/artist/d36e4fd4-b65f-4f06-bb72-5c3107037317.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Weißt du eigentlich, wie lieb ich dich hab? (Ungekürzte Lesung mit Musik)
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 1
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025731a00ddeb35a58535910ab4710d5482763f1358a5251cf0665873c97a0d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733451 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3799b75d12e68210f0a1b8d8b9b7bb56cdd30287bdc2120e7c97d3e40a44480. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733452 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f12d4ee8054ee86c854a06ff30c42d702d608f78f93974a6470c46a10eeffa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733453 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1539ce503f74b0801f3b4d006f912ddb5a786e765a7855e7786b355debcf8d. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733454 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb36019d33770b8cc65c26f859a97ae31837c04971cefc81899da02046cc69a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733455 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f270dee18e28138f5a29a4eecadfbeb3ccfa4e423b4fc57d38fbf6ba1c0c2. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733456 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920b9a8eb790e4479d09d4a6cbba890c7a12e20d028aef7725b13376a32d6009. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733458 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc28ba760232e861cea2db5448a7462b8cdbbbdba5d806fbb304fef763663a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733459 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64fa1953a30db0f971fa41cea753b21f0be0c34d7aecf68b31b5276536928c9. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733460 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbf0b6addd77f0f24889467c01d8f2d564ca90993f7a6e4f5e3ff9a0b99ef9a. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733461 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34be5db24599ebf0f8e3d5e00bb70fca7de955b30a6755fbea1a3e846969235. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733462 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976b416bf5b5f6a1f57bc65b3f15f242fb1afe2db40d11bbdeba6011859b6e74. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733463 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ebc7b7e848d7df4f41c8f4cd94efb59fc7b9beb810cd4ad8eec7e4b1eefeb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733464 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3855069f0491c27d510b274bfe009c06a7e951dc866f63dcf389bb2ac0bd5. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733465 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eab9bd1e1664fefef9c59a0da814faae95262697f36ae67af9f4aff9ee3448. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733466 — a six-check JSON result.
Weißt du eigentlich, wie lieb ich dich hab?, Kapitel 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf987febb874e4da6910f12ef692ce04a883a02eeaddaf216fb8a97a431ce95. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE11733467 — a six-check JSON result.