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 0x3724cb8538041ed7bc12c27c9de21e6b8796da97a4836646895e97dd7f0dc151. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92c8caa4-8144-42b9-9cd0-398881d16655.json and https://artists.proofprofile.net/proofs/artist/92c8caa4-8144-42b9-9cd0-398881d16655.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"Tierisches" - Lieder von und über Tiere
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 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 0x4850aa4f218b93b41bb474cf83715bc312f766adef9eb368d512acf81c35fe15. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 957124 (2026-07-08T03:53:27Z), 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 957120 (2026-07-08T03:22:41Z), 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/DENM12000176.
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 957120 (2026-07-08T03:22:41Z), 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/DENM11300323.
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 0xf3e4d56f3c0d67ca0c45dae6ff041a23691b2fb027fd2e1491a7dc73c79278ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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.
Die fabelhafte Welt der Musicals Volume3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe973dd302b3d62d865f0068dd20aa361bcf9647a20d0cd2e64ef1d65238aacdd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEZC62106248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb39b96d7fea8e158324979951d8fabd839314d8f74d1163de9f980bab2ba3fe. 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/DENM12000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd7d9ae65386c0414d509b3ba0a79d972ba663ba7c1d038e5a085db1f2c54ba. 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/DENM12000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766fc5e0e229cada582028669970dc8aea4da2f6965da8e8ce4dff2d27254069. 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/DENM12000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a7c95d2097cb0bebd44051fab4f9e02b589906e7ab99d1900475d9a725a901. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DENM12000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cc23745ade80afb7588313db9982fd4bc7733691be992444577f72f2adaa82. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DENM11300309.
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 0xb160325a0a6873d9077d0fbf1f9cfb7672a69963fd81cd55f135eb7f342793c0. 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/DENM12000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580930052f4fcfcf30da83f438b1e4c3541e083fa7671d2e9014e67dea6a77b3. 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/DENM12000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e4d654ac8cf03b6bb2fada76d0fbd214b9ee96991eb686ba2fc4bb5ae18027. 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/DENM12100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653cf1fde17457c155581b50e75d8e5fff0574193a83c086396774d4cec81f72. 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/DENM12000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4ff27c55cb09d9d5ae866c4bc23f126e9c6c201192aa40e72b6cb959a2946d. 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/DENM12100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae93700a0a26b866b46d2a6903eeb39b0ed5d55ffc98f308345c7bfb6671d192. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DENM12100221.
Die fabelhafte Welt der Musicals (Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599fee6c67d8f620e166fedcbaa3c99ce563d10cfbb1bcba8ef61185c5912c9c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DENM10400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc50392c64c42fabc9a778b4e93af812cacfd00078dceba16a43411d3631c3f4. 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/DENM10400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1def022683430e01dce8b8ca535990be882a8adee2ae86b871f0af798a2945ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DENM11800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9643e413e915673164ef9e79030bc0a08f41fe691c57bccd7011937db9fde2f9. 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/DENM10400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc17292a34ee892fea7295f36b2cd51462cc0afce348e6e2116296219cf21ff8. 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/DENM11300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ffc77c8744182725117955f369df00430b2f42905cf3f7489abc75a0a2da2d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DENM11300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f7b349b830734253305b145e94685fc12f89110f5870850804817ae7a25f3f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DENM11300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721cc5c6ccff2ca4e9425875ed27679148970344c2befb643692c19522bff124. 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/DENM11800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd225ec7edfecbed06164e78dbfbff05dd5309fa1bfb2e268c51cb035eeca4944. 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/DENM11800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93f5d1015f0d77f074524c4f8ca3a02750c046b46011257f49221832e48d1f6. 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/DENM12100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81f0416117a58fc8261260d22560fc4f8fd211ddc76ec6082cdad157a2e94c. 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/DENM12000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b9cf727717b8253567211bbb37fb5a24219907b4784cd378b2e4e34f101aea. 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/DENM12000177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb160325a0a6873d9077d0fbf1f9cfb7672a69963fd81cd55f135eb7f342793c0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DENM12000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f81f0416117a58fc8261260d22560fc4f8fd211ddc76ec6082cdad157a2e94c. 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/DENM12000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580930052f4fcfcf30da83f438b1e4c3541e083fa7671d2e9014e67dea6a77b3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DENM12000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71534983ab6b715885ae99b6db75be6666c2f89aae94be8c229929371543c652. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DENM12000168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6275dfb744d875379d3294d36a37d2095a1554d170e89cc6f094be18abd8c1f1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DENM12000169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760efce21a50a443b37088dfa1a80566f4fb26c5fc6f4bce0c0f791be069be38. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DENM12000171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653cf1fde17457c155581b50e75d8e5fff0574193a83c086396774d4cec81f72. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DENM12000174.