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 0xcf5443034b7d158b9312fea9ffa8cd9267ccb00313436b00d69b7fa7c277f1ac. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/147a68f1-e570-4bf2-9ae4-e9b2b6c6d8ce.json and https://artists.proofprofile.net/proofs/artist/147a68f1-e570-4bf2-9ae4-e9b2b6c6d8ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Träume haben kurze Beine (Aus dem Musical "Die Münchner Stadtmusikanten")
Träume haben kurze Beine - Aus dem Musical "Die Münchner Stadtmusikanten"
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 0xe8fff5ffd30d933e7213edfa94519c967b5c5a1ae001f7fa6caeb8490f1362d0. 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/DEBL60369628.
"Tierisches" - Lieder von und über Tiere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1a453e4f3fecb2497671683911129efcdfae2425abbfaa52c180ca87669848. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM11800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d4ae8a70aa2c13eddf4a5a10a21e0b91154cec223182a956906cb2896aaa71. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/DENM11300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4850aa4f218b93b41bb474cf83715bc312f766adef9eb368d512acf81c35fe15. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM12000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6dca62ebb714f0409b9cacf048f475fa666edef5d187e8e0dfd5f0673f6f26. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM11300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d0f12e176216784f91a1ac08fc82e9ceb733a85c5374d9eeeb062d90ba0e0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM12000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad8616ed0552c8efe89a7f390f5e03c47c08395e9da91674d47f93cb4d49842. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM12000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97d243d56512129d22e4c4cb46d687b8c4f698a9843ce393246348901003298. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DENM12000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b85afeb614caa85fedfcde56ec961efc55f2d183e46ec22389652057e041722. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM11300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1abed3f2cc061a28c6a97928f5f5e34c1bc053a3918fcb48837dd220556de63. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM11300323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7da073a981807c922f0f00ea97ca494e4c4909b856553113aaa210611e3c9d5. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR10S1473147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbbf4d75b19902674fde972d9ed834671cfa51eef3f7c956378cb27240fd920. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DENM12000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba5b3cc3349f16228373c3d038e8280485d290f7e04ba918d40c37e3ffa3845. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DENM11300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5180641fb2008c9406a43cb061ad49d20d06f28961f8705a998d5b179cfa7b2d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DENM11300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5ee700e8eb12b3c6efeb0d03b94f776b5677c273dfce881f4f1db9202318ac. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DENM11800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81f0416117a58fc8261260d22560fc4f8fd211ddc76ec6082cdad157a2e94c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DENM12000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7a11c4960d7eb306284957df1106ed001c7fe60d2c572cabd8ee51b17a9567. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DENM11900184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4d56f3c0d67ca0c45dae6ff041a23691b2fb027fd2e1491a7dc73c79278ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DENM11300030.