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 0x5dd47f81c58e527663040aa403b65c890e2964dcf05f76135e70045ad5757be0. 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/7b34049e-7b59-4da8-a849-14ecd66855c1.json and https://artists.proofprofile.net/proofs/artist/7b34049e-7b59-4da8-a849-14ecd66855c1.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 0x6d336ef4daccb28f869b2f37fbef38b4f5f91be15db59d1f75e3cff7ab3a33a0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEUM71905796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0c4bb700f8c4e5693766efd8018b10a5e914bfcc8d9899eae16c574c7e4a77. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEUM71905797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc059c819c968f04ed0a3d6e5d2a97f01a4e8619cd0eed8376fc09921f0f9e6. 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/DEUM71801345.
Ich wünsche mir ein Feuer - Akustik Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edb429c77d2fad885473619e0f4f9c2b5ccd4cb01643408929e9d636724c226. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEUM71905799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19143c53c624380f42045c933a32aefc0badab94d87da30776063367d63ca4c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEUM71801349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414540ab58c10ed7093071b6ce994b6302ffe66a81828d8b18d2a66a9928dbd5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEUM71801350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0de3b7553d582d610a61760b1669b5971b88b90e9de1d5f74c25da745f194ea. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:21:21Z), 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/DEUM71801351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c259573454ad6efab5a84bc6cca85dee5f4f7726064508f26cf6081a6b442a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DEUM71801352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799786832d8ba97067dbec9ca479c51381f973a875cfc965bc12a991eb86be59. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEUM71801353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590ca96ce5b834c7179ca5f0d7f79c50fb6d3e5059cd56aeabd36f6c791eef83. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEUM71801354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae07d8e07e8f3010349f37e8fb1de8d993e3d452e9b28fee087bc3210e0acd06. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DEUM71801356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda98d624bb729bccd9d8632c4bae970d3718490fcb530ecbfdcc8c951f5aadcb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEUM71801357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e0390972134a19f06fb0836975d1cf3129a89d25f3e060e62d0ead6098bb0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEUM72005739.
Einfach nur ein Mädchen (Akustik - Ich find Schlager toll Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e89898105f37285fac2a1533376d74e3097e3fb513a91fa03765f798043838. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:44:17Z), 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/DEUM72004623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ec33ac9a68ea5b2f5f359f085e85dca2442295d7e3770ecb6af39d16c12792. 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/DEUM72004616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a99e431344d834ae46741077acdc90c6d64249d51d0a44a1cf6a136f05aafbc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEUM72004614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ec33ac9a68ea5b2f5f359f085e85dca2442295d7e3770ecb6af39d16c12792. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEUM72004616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756c6960aa065e8b31578e2a960a7e01a457d51c598d03a47bb4a7ea52af0f22. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:33Z), 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/DEUM72004617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7605e7a8864adce98c0d9915c3aaf69594fa338ef0c6aa1a3fa55a6de69d9765. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEUM72004618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1292c82e187b720575ef33ba40d26ee29a0d0849709c69b0604c74923544af24. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEUM72004619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bf80dfe236bb200365d23590d6eda566e6428739ba80b5f1e3319da4386990. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:08:53Z), 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/DEUM72004622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b40eea825cc32cd660e76ff111708a34d705e5ddad5531621c4a113cb5ca26. 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/DEUM72004626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb4af0dbd921e58a610716bbb0ba960f27851a9efac4477d5e1c2b2ef455cc6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEUM72006079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee693058c8f97c9c5fc3cacc5b45303ee2b4dfc033d64b8e6a0feaf40b0137f2. 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/DEUM72006081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbccdfda456e866db436c74612591e8e849c3dc9e175cb7d90a486fcde9e636. 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/DEUM72006083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bb7c94a1b3ef43c1bf71bcdca8ad759cc5c2c0d82d00cb06dc363aa3304226. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DEA812400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bfa80514a85d33ae9ac923df8d9877eb277346e438c92210f80246e56e83b7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEA812400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bb7c94a1b3ef43c1bf71bcdca8ad759cc5c2c0d82d00cb06dc363aa3304226. 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/DEA812400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2f4ec251ff691cc8b8ef35649471b767c62626091202a85a64b24c748c3bd2. 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/DEUM72001479.