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 0x2c6d4c5d222304426d3305dda947d8578e17abf465bf99c5efe818d1b03850de. 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/1266f984-994f-4897-946e-fe074f9f3a4c.json and https://artists.proofprofile.net/proofs/artist/1266f984-994f-4897-946e-fe074f9f3a4c.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 0xcf0fba2ee418b9bd9caedae15702e249e9b7b17c72683e47cb0408e14adcbedc. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DEQ022003915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f508539be3eb1255b349b4e2bd75754be8dfd4f331abe4d73bdb94f712f382. 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/DEQ022111091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6269fc69b4ac15408353084804d44dedc259e0ff19c3c92b1399ca712e17d837. 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/DEQ022119460.
Wenn ich die Augen schließe (Achtabahn Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebe15da1df9ce7495cb01697a6a960be05997db449e97c17f2893e63254bc84. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:08Z), 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/DEF912000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cda8307bb846fa0e89ed4a62925af04e356b03ed17b1201453eb80379e9c46. 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/DEQ022291393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7aa0d66ac3ead75ab17292778d4e55147d06ee212eadef65eead903fa12ba1d. 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/DEQ022291394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71350382930fdfe74174787ecdbdd36b373336bf6cb15bce897069885a54142. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEQ022291395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d70ec0a491d426dd368878786d2d7f19d52cae720624a82a0fdfbb45a93d744. 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/DEQ022291396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571bed1aa682c60b5d4488f58ddc03e8630eeada3acd427a95c42814758c4583. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEQ022291398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb568dfb99eab18c99e04bfb881d5951ccc7535a3369f5a407c91525f7836cb09. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:53Z), 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/DEQ022291400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bca2011403a993352279a14f4e983140388bbcb994656668ac89cdc5962a19. 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/DEQ022291401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49635913c928f15fbf01a1c985bbfd05c6eb686faa87658c7abd046e5ee4367. 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/DEQ022291402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb6677eade0025d7c55f40c911ec456ca61de003d928078b4c0bd6e14a5b2c9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:44Z), 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/DEQ022291403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a8e461670556518e86e3bf6d2c4609dfc4b1c4c27690cb1ab436c2dbd6c947. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEQ022110443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f508539be3eb1255b349b4e2bd75754be8dfd4f331abe4d73bdb94f712f382. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEQ022111091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa0d986367633c0c2d5b6714427bf535de9b28d984cf0afa8abc02a359188ac. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:08:24Z), 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/DEQ022291775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c811049a95303c60b11540a951a79ae1190ed56ca76011403fa59ca1b8ad8e0. 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/DGA092364433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b61bb0171bd043e5cb8d54165902f637207b080274b26292c3493722a16fc6d. 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/DEA812200565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c811049a95303c60b11540a951a79ae1190ed56ca76011403fa59ca1b8ad8e0. 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/DGA092364433.