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 0x703d0971145a86b7521911def2093803b11507a2fa326921f024ac08e8860f89. 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/0741bc7a-1b6c-40b9-bb5e-0eecd8199ca4.json and https://artists.proofprofile.net/proofs/artist/0741bc7a-1b6c-40b9-bb5e-0eecd8199ca4.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 0x476995e5f11268560bded24f73451c91240e1d18d05e8124adf7c26091e50c04. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:49Z), 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/DEDF61100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b90c48291abe7ced481cdffcae8de50098a6837e62b52650d10416860df2d0a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEDF61100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67031e39a8367630b2858e27d5cbd996b7be9f1a30a707214e7d02a2a234278d. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/DEDF61100152.
Wenn du mit dem Herzen siehst (Der kleine Prinz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8379aa4a6dd43017b7caffc2e0ebaa0854b975188a95266fa0621b2ebb79a51. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/DEDF61100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b1c1bbbc911e947d265b7d9661f21684ec26027c3fdcb2334a9003e3a382af. 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/DEDF61100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e770904519b91e2fdb8c08f24a4a12778ab47bac7d88e983da5e9ab60b010b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEDF60900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ce13e6d2306e0da9eb60509d52e5c31e43a86e22f4c0dae4a112c70d0f7a30. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:03:52Z), 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/DEQS91401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32d4d97bbea0bece58eefea3c77a60a530a38e7d67ecdc484d3eff5dcb3f36. 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/DEQS91401119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6b2dc8333b5659d522e256f867a856eb5b24fc8a3e8f79cf9c1a86d3f4bdcf. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/DEQS91401128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ce13e6d2306e0da9eb60509d52e5c31e43a86e22f4c0dae4a112c70d0f7a30. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEQS91401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32d4d97bbea0bece58eefea3c77a60a530a38e7d67ecdc484d3eff5dcb3f36. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEQS91401119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0105346654ca8c91422e05a2ccc66a766e8418eec8648c6bd2b44db7ceef0281. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEQS91401123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4b9b6e7e13982738006525dc258832e9d2871f5907951a99570ad01ea4e25. 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/DEQS91400841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e948f43259be4bf41fa49590a08d2931d94059bd4950e0c1d8e9ad2b007ae0d. 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/DEDF61600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1824919da6189ff762b3934aceed677fafd53f1b7abe72a5acefb870fea41e78. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEDF61600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324ebf31f6a95ca88de09abc3e6135b808c5bcf1b063aa47ea61933b71e5f480. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), 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/DEDF61600115.
Du nimmst mir den Regen aus meinem Leben