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 0x57b88408b815332cdfa035708a9f3d3412518d1183d9ca5cf7e9b69641ce1ed6. 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/ab154bd8-d6b4-4ee4-96e1-76f8dcb18c42.json and https://artists.proofprofile.net/proofs/artist/ab154bd8-d6b4-4ee4-96e1-76f8dcb18c42.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 0x8cac2e11d1b89ebbd0bd3c089f27658b313c569c68b697d65dc84c7b280ce25a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEEH62200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1788122df8c8cd58b941efc1de4fff7ce145e10f549ebf03f5ebf62b11f09168. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEEH62200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da97eafe74d0a4b89f536d9cb66632f40925e5c6b769b35cc7ae24fca833cb4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEEH62300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ae3cc6abc75d22743751caa8073028c03fec64e452df0630267d39f3dc6a64. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:29Z), 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/DEEH62300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f580a2fb1db83362078a416aa8203d7701ae6af6ae1bd11f561154177f43c0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEEH62300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341343e7432860b9148fab8d968503060ffe3cb9ba6eb3a95a9e2a823c6fcd28. 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/DEEH62300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5911dbd4d24cd24f4e2a21184bd37acd2824c3e1bca03bca1640ce6df6cccf36. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:24:31Z), 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/DEEH62300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ec236ed65ba9229b7ce19160514b24f94e43e9616acb69aff384eabc37bbe4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEEH62300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3293d5030907c27f9f8c911db1e545a46fddf54fcdc41ae7c5fe6057c1d154ac. 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/DEEH62300190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16a77b3d82c0ee71b3f0d564fc81edc21f4e9e15902ed03296a69b0747b1ec1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEEH62300191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a49398112843cad9681980391bc3eb6153b705c83a33f16e4623f9aa0c17572. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEEH62300192.
Vielleicht wird's nie wieder so schön (Gerhard Schöne Tribut)
Vielleicht wird's nie wieder so schön - Gerhard Schöne Tribut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c25835763e94e768e5b1572094755e689f49c75c4f41dacaed4acf15a5486b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEE252400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695da945814da58070ec1880cfb482328f8466d0628ff28b1fe93e2d2bc775e8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEEH62400141.