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 0xead3d18e6bc0b42ef7e70d1fad6fcaae699dbf951693eb97af3432880fa048ba. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4549f5f8-1ad8-402d-a0fc-eebbfec9b7d0.json and https://artists.proofprofile.net/proofs/artist/4549f5f8-1ad8-402d-a0fc-eebbfec9b7d0.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 0x51fbb797cf83471df83d7f7babfe4388b6c3f8986b4f54e3e2dcbef1f42353e1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEF240500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff383da16cab8f2fb8626d04c0d53c67aa24deba812078e0fb551c3931a663f9. 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/DEF240500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19e321cebae5e38929ac6afc6c29d23493f03348dee959504da585a89e5c790. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DEF240500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0241756bab1cfe201b7f95e2224a282a9a72b4a860a4e6c2625eb848a2282f31. 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/DEF240500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fed9b4d4bde9959679f06ca865dfc8c9ca8f9c42c48de7d80bc67ebbce5c01. 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/DEF240500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685c30b5c5d842c001170630d1a7f6f8b9220e1335d4bf9108226457258ac6b4. 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/DEF240500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1bcb7ba17c179f61dc7b9bf730993241dc93f36b26273f373656bde5ea704c. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:01:08Z), 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/DEF240500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f40f362c26d52d0188b34cf25c6fd1e914091ed44c3f3eb31a56e64a3aa058. 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/DEF240707001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4dcb564241337daf6975add81728c4bd7cb4ff68a56a205cf96d79ab9ca719. 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/DEF240707013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9ca3a4ee35e467b55ddf859d56f83ee51c9a5b0e105267afa241e979fc235f. 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/DEF240707004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439f8b75501c481f5407707f1fa55cd809126ae37e6574be0838f1941a86fb66. 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/DEF240707002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60af29637928b90690f7720b886780a351eba8285d545e385737abcbe69a084c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DEF240707006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5d3e7bd107a5b91d2c720e2c52d35791cb1f28ac01d217449b34281196e91c. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:32:42Z), 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/DEF240962571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7520686c580e3587bed70d7eb79f388094ffbf6475f669d094f5f0e9e30b556. 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/DEF240962574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23cc26ae09d6bfa471e18b6596571e1ccefe60cceeb3f5a7806714c08c8cdef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DELV41300639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fef58e906e2197e1dd8b65e0db76076444bb65398bb0cc388cd16f7e0b02495. 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/DELV41300641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90412aae639efaeed53e3b5bf11cd839535dd16d30342563aaeb25eaafa21d1. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:01:24Z), 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/DELV41300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1405a38bbdeb204b0737c3ba4ad6755ba29d4a40fa0d804bb50cc4c21748abc. 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/DELV41300645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa51928ccfbae6587ad785c61b42e5d7d577280f25eec3052e8352cba002db9. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:32:11Z), 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/DELV41300643.
Alles für alle bis alles alle ist (Akustik Special)
Tanz mal drüber nach (Bonus Track Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115d1f1509b05ea7e10fff7d4238fbed7f910384a7e52c6776a948ee82d18b2a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/DERK41500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376286505da756bf02c1a8e2042f767b2c9c33d11b340d91baa6e118affbfc21. 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/DERK41500030.