1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4154ee13b02537221c150a8d0f35c6c6940518a0b578990fa739de0a2a6019ec. 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/932a4b06-d358-431c-a0f4-7efddf53dd35.json and https://artists.proofprofile.net/proofs/artist/932a4b06-d358-431c-a0f4-7efddf53dd35.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 → block OTSBitcoinBlock must exist at that height 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 0x487badc5a5af3b504a92a123f04de6da77ca510671d8ae1befd16192cd649f6d. 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/DECM10600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513c65740eaa5d2268c0e17d743beabb2144aac462d05ee6c714cfca42b371ef. 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/DEZ650512714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b7e5486d5c379b5d047db2727f3242dd6d1cb64e92ab588e28372a1f837e91. 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/DEZ650512718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf220ab020aa3b0673550ce9e1f042f9d00b90b6e17db769f63d0f1255a6e5f9. 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/DEZ650512720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05e1596e2ce843b20b04a987194513be7e1fa43bd7651a36dcd5a8f9ad19243. 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/DEZ650512721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350aa8a0158ab6cecf77841c85f82c1ac9233f124393cd2ace2c07657a2fa81. 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/DEZ650512723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db8422cad8ff352e9aad5552f0dcac88909dbeae3fd46ac3ea99ffc1fb58e41. 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/DEZ650512725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72185257243d11b6267e4d7c94ef219434f71be41b6672f7467672d719ff3f3b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA811700431.
Cool mit mir selbst (feat. VitaliZe & Ela) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32319aebeaa502eed1018fc5d219f1f33746ee356a9cffb2f4bd1c48c53637d3. 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/DEA811700448.
In meiner City (feat. Mr. Reedoo) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076f1d52f83c12b516add69b5606d280b1f9eba6a150fc639a3149e318d06921. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEA811700449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab1a37524309efb17fec4cac000b1d1e3acd2be096f7bcc3623b307803d2416. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA811700433.
Cool mit mir selbst (feat. VitaliZe & Ela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848e55be39eb2fe06aca12437ca51b09da6391709fc8321fbd789b3efebf4fbd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA811700434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5cf77250ddb99b2e4db999434ece9fa1c60540bcfb5f17915639cacb95d63b. 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/DEA811700451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb4d3236321df1b2f2d3e010e25f036ef4c575eef69c2b8eaf03617537df490. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA811700435.
Hamma! #10 Remix - W.O.C. x Mustardo On The Beat Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf312fbe9abadc1724f1b7416c98fee5e9334c09fb8d75c3fb513d06bde8fb7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA811700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67595dc6b45231ed2a4aef4856410a09b1e2eda93d33cb2e16a17dcde081102f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA811700436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dd6e686c1ab5b9e666dfd57d593750a1aeb494807b68437012af0bb78cbab8. 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/DEA811700452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7585c63222dc44040b6dfccefbb419dd368dd0fcb04f5f677fd9332149b8c8. 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/DEA811700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00943a95eb8f886f29e91acef025bdee58dcc039e7c92341defbe23a7f685b2b. 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/DEA811700438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb94467cfcd6fa5fddbb1ad529f9de366aecbd276c9feaa1c85fc56ea502f8a. 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/DEA811700454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfec738e4e27e7f8e7dacd1f5e4fb704f2a9fe4b52a79fe9e8983bbaf3fee0f0. 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/DEA811700455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3b373bc12a57f22f0da78e506221e145edea328a22ace56695e866c1e176fb. 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/DEA811700456.
Schlager schlägt zurück (feat. Hans Sachs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205fd803e42735bbe3563a522fb3132794efa62072747effa047495f0d063197. 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/DEA811700441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77b241be61a44fb90c1a7843bb19adbc3c66e7f7b8a83019d1423ca700e754. 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/DEA811700442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c9623bf348916a16f00559450e0b36ca804b2038836e1b41685109068aa50. 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/DEA811700458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4662d08fc630b5cb61f06b6bf8c5a818a41b4afe425fd2751056239c0f57591. 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/DEA811700443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396cfbfa484d12016ac2a82ca058eff6c1f649f95c4ef104629fdf07b8d5c06e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEA811700460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29de2ba8df78db4f4e421b715eb727335ca5fabfbb0c92d3b9f453389f80dcf. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEA811700445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f01696b9bb2429490aa1b101f7a5503caf821e99e3529e52a097935b7f1a353. 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/DEA811700461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1d40db33de05c5a77a1f59c42be2265c88f5de867543722fddc6be43319413. 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/DEA811700465.