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 0x596a2b881028511e14dc5c8feee8bd7cde9c3560ab5fda513f78339c68cdfc2f. 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/89d32ca0-edec-407c-adce-49bab5a38500.json and https://artists.proofprofile.net/proofs/artist/89d32ca0-edec-407c-adce-49bab5a38500.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xd778683373d6f5096f7dcfe57cca4a18487de03dbbd16ace13ccc5471b6926f8. 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/DEC712105690.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e41989522801b4f0e2756a4e27b9045040773eea23540cb3b35c8a396afd3f. 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/DEC712108538.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fdd40c7a88a40e6cb120a5812c2f4a116dd4f124115cf5d7480d40dd3047f8. 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/DEC712108539.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a5b82513ba71a05745eae0b99fe6c7cf93d1e0da71477fb61da901780d4079. 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/DEC712108540.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2da1e97f419bc111540549196f463d28a6fdffd746cff0284bc6bcd73ac8059. 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/DEC712108541.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 05
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801241190f8236462c36df29bc207be2c5ab9b0c5f3ad46fe4b59e3f2b1941d6. 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/DEC712108542.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898c87a5a2b8896708d88df3c4b5f33206b870e9167daf5d09f24c756935b347. 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/DEC712108543.
und der gestohlene Preis - Justus geheime Vergangenheit - Teil 07
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e9cae37eb667628c7f643f0db2fac91cd3c56fd5137e656f9f1e1c68179e0b. 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/DEC712108544.
und der gestohlene Preis - Überraschung in Studio neun - Teil 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa721235ac96457dc268c4781fab7cd25d859a5fe3377a3f58788b67c3aa951ce. 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/DEC712108545.
und der gestohlene Preis - Überraschung in Studio neun - Teil 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20185bc7fa9202e73c11cd02d5ec1d999ecc52fc42f257de96257d02fff37df9. 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/DEC712108546.
und der gestohlene Preis - Überraschung in Studio neun - Teil 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22277cfc94ff6c612e4837172602907c4b1e759aedf0e77d285837c9d115cac4. 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/DEC712108547.
und der gestohlene Preis - Überraschung in Studio neun - Teil 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0612bc3da150f62f638b7914a79d76dd4cde7fbb486d9b41eddbea9bf2ab3bad. 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/DEC712108548.
und der gestohlene Preis - Überraschung in Studio neun - Teil 05
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf262bf38a1c902dd6051d6b9055f3723a3e8d0d2a1bee6c22aae710496794638. 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/DEC712108549.
und der gestohlene Preis - Überraschung in Studio neun - Teil 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a1769f660f7fad740257e02a8e7de0c44f43c9039814e11dfa56fdc713d59e. 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/DEC712108550.
und der gestohlene Preis - Fünf Strolche und ein Dieb - Teil 01
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ae6d612dd091d8e3d926e3ab1e732cd70b6eac507554743225381b1c727718. 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/DEC712108551.
und der gestohlene Preis - Fünf Strolche und ein Dieb - Teil 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511f038d8bf489b0ce901a59384d640eb20ab904bcff7540931d41c408883918. 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/DEC712108552.
und der gestohlene Preis - Fünf Strolche und ein Dieb - Teil 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa6c7e42c66f54258fbfe6e8aac79489ce4de351c5cad1e39682973ec4afc7e. 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/DEC712108553.
und der gestohlene Preis - Fünf Strolche und ein Dieb - Teil 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bb1bcd627fb2512852d5eac9a8acfad8bda9988de70d8e51e528c7c239ef7e. 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/DEC712108554.
und der gestohlene Preis - Fünf Strolche und ein Dieb - Teil 05
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4194411bf0498a0f02a392a252db46ca438356cd79cbae29e2453468d973e3e5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC712108555.