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 0x3e194449c6f53fe23c5b3206cd8c21d647fb60901ad7381a72842e5245e3fb00. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2929d68e-2dc8-48f1-b7cd-211a81447839.json and https://artists.proofprofile.net/proofs/artist/2929d68e-2dc8-48f1-b7cd-211a81447839.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Blume des Herzens blüht - Sa rosa va lanella tja
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 0x179004d524fee3707dc72f908ccba8a580e0f20c537f6482dc626ddd8fa6322d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DENM12200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814d19f208abf986c8daa2754b6a97a71140e4ed0aada69aa865f4f8f709758c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DENM12200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b2adecff5f7ec4787f68c961c6d20263cc395f7275f5e9419b69e7bfdc0249. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DENM12200044.
Zwischen Suchen und Finden - Chzei Vera tu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c31c730c221e92e77c7c6b56a844e9d941981a116db039e5a083f28790545b. 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/DENM12200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5df9364b90fb987956c37af628d3d14dc1e785ccfe955e6bb443b0b9f0ceee7. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/DENM12200046.
In deinem Arm im Reich der Elben - Veisunje Chemie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fac92864e95a2bb483ecdc4e935e4eac6df18b73af499583542b39f821059ff. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DENM12200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f69912c0b0912b9dadab1e3ea34077ecfaa6bec61517ab5e52b26f3510dca3b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DENM12200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7a92ab14bda34637e718984e655195aa275b339af279ee7cf6e12dcac64a63. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DENM12300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3608cf2524ed4ec5f9e4a2538c85a3733e8204f345848a76d04b7e88b425b4e. 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/DENM12300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491e4eeb336a30d5fb895a3605b694391e2e0a44cdf00e73e9fbd372ebaa2877. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DENM12200019.
Hommage an Amelie - Rosnerva La Purineva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e35bdc9d4806dc9d80005ba3708750a05fdb6c9b5e46948bb0d0366172d9d59. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DENM12200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44263d3e8896fc16ab58d66e85ef12e208bfde6b5d0b35255892ba53618d945b. 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/DENM12200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbf128e406ea05a3977c37e1bc7d1f1884796880ca7058bd61c9d6469b894be. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEZC62297719.
Begegnung mit den Einheimischen - Kantucha vei lui szera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b44969cd255ce7f6b66957cd13662c78f858183d9dc4b8b1d6ac5212864793e. 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/DENM12200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac99549fdf3d7f271f32a9133feedad1c66b3cc48b13989c0a591bcbcade391. 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/DENM12200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afa4f8f9f5a1cc022c8dc3d788f576efdea945723f70280370d917f33d9ff9e. 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/DENM12200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff9620d80a7a963680ba9bc0436243fc1317acb88819f5862bdc3f48b99ca00. 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/DENM12200040.
Abschied der gemeinsamen Zeit - Adieu nesi karjema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf2bf7946c12808213e937fdfaf1385068657fbfa56d583407de82eb59dedd0. 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/DENM12200041.
Wassertropfen auf meiner Rose - Cheiverle jenu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5d27275fe320c2a113213be6fb77d5978380cace86469f20625ec0f59a31c9. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/DENM12200024.
Als ich den Hafen bei Nacht erreichte - Nujiva Periosteck
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2709bce066087dc5945682ab9dd05984ee6857d635feaea6f55a4f074b4e50e6. 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/DENM12200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4eaefd70e916c27844c70277291bc647a11def6ffeca160634bd287b1e1418. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:23Z), 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/DENM12200026.
Verwundert bis simultan - Quiren saa maloque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2683c66e4726ee88208935f3cd883832234c296d9b1cd97c475f9305ad3341. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DENM12200028.
Ich bin bei Dir. Für immer - Yuiena shino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f735a19d5aa7f024ad39e4d2e7c074321dc5abd9d376436126952e7f27940bb. 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/DENM12200029.