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 0x6bebbb84c2810263dc8ba85d1894121041f51f0d35f217f0f7d3b1667b99a539. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a92fbd24-87e8-45f3-ab9a-b14884fd7de4.json and https://artists.proofprofile.net/proofs/artist/a92fbd24-87e8-45f3-ab9a-b14884fd7de4.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 0x11e4b91fbabb878fb72cfc10180b05ecf4ebe837aa38d66979b54d4a90f6d3ef. 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/CH1081503501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea934e655a3a1d3f8c1e8fd87fb61a7d26c8bdb143d853fece87f8f8b522b5c. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/CH1081503503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c79a296ac53abab39be1c3e5a74207b9a3d6eaf1f8b772a519a120268271b6d. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/CH1081503506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe68139dd319d30ee581a261817d7007b61c034ad568049efd862f155cec50b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CH1081503508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd698cf9694f1871930c1e63e20fd81e3534a9ddf4852c5253d29e6dee8286. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CH1081503510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ff8c663760a1db9469c25d1bb6a0fccfbcd60d136d7a0f88436c48b3cabe8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH1081503511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe06479a0a06ce295d0717846f3660ac873cafb7c17228a908610a749a431d. Chain 2 (Bitcoin): anchored in block 957536 (2026-07-11T07:16:23Z), 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/CH1081700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53c3ca5629241081164853c83470380808bb29e31e0b30e335255c42b367b5a. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/CH1081700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f42957e7081afc5b42cb3c4b5867a073fab0d49733449ff69ff083e364a39f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1081700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24f4653851bc0ccc1f36f215cc5a1fcc9417dc14e2341f4ab3784f9062d79fd. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:49:57Z), 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/CH1081700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cfd01d4b7e902719a3a80aed7bbc7bb082ea225e941b704ce95be490faab07. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/CH7812037127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e669f0a875e84d94299b20549af1d79693decd3b31292e6ac7b0940fb220d4. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CH7812037130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50bd3b70499561a74dfe20b144f9724c2e611172c4e3d25084f94ec11028c0c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CH7812037131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815ae45ce7babc34d8eaa5e921a2d4e3bf9515a6a74532c942cadf0cb7f1018a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH7812037136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82866c8f33ba7cb99b7d863f3eccfa33e4dcd44d7c093f17b9c02848f85ffcfa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH7812037137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc427620e52aca3ee982727737c7e3b76b83c8dfe1fa203890e14aa5cdcb40a14. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CH7812037138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4282ecfb33a25816ceb71a08cf15e2e26137cd58edfed6bea1abcabe6f9ca19. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:13:26Z), 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/CH7812218760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6394bb50e2b7a7b236a56221b204a9aed32c6b6fd23d7684eea4a308b022ddc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CH7812220081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ebb929e1a2ac994fe615e338d4fe205e35f0fba3fdfe65dd2fb5f8b0779dbf. 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/CH7812222802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2b8246498192fe0381e081d63ba947d0784caa363a93474628dd81259cf856. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH7812236453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018052b67a035bf2741a6700def1d09390fdbc3519cf170320facf781bab10e6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T11:11:18Z), 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/CH7812236456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bd2e77ac0444e3592ba81f36d4750b9e9bd89eca21595c5b6caace9d91b4f7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:08:56Z), 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/CH7812236457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86426c23a0c9a4e35bb6e5c2f904e88ca380445571b35e04edea7d511e72551f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812236458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f50b03ce9b614e114bdeb979dc0fe907ef39ccd1b943be829e2a9d8106c7aa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CH7812236459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a320114fd563767858c265dffe42197f0d3ff0d28dd335e463279eb637d1710. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:12:20Z), 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/CH7812236462.
Mani Matter Tribute - Und so blybt no sys Lied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c964c7c8be75ad257bc9aa970f30c34a405a6ecc9597ec1ece9fd7bfe3a5861. 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/CH1081600146.