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 0xf4fd2f757e195aa4fff180e93a8bfacd40219487bd08eb6d6cf05b8fdac37e99. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bf0f647-b5b9-45c6-b933-daef888f4e43.json and https://artists.proofprofile.net/proofs/artist/0bf0f647-b5b9-45c6-b933-daef888f4e43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leck kein Eis - Heiss Baby Eis Baby Edit
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 0x58dee35e933c663e9782049865a4d02ead905a70d5df7f02d1b771bce7f0c301. 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/UKWGU2560981.
Mia (du geiles Stück) - Heiss Baby Eis Baby Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7f27eaafe0fd178ec91a33579652aa3680dea9059071e6cd4879f69bdb884. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/UKWGU2560982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a392f3175ffb66cfe037c481c4680793dabd259b552db4a8d6b77822436b12e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/UKWGU2561111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dee35e933c663e9782049865a4d02ead905a70d5df7f02d1b771bce7f0c301. 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/UKWGU2560981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7f27eaafe0fd178ec91a33579652aa3680dea9059071e6cd4879f69bdb884. 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/UKWGU2560982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6bf01c4b39135a34ed4f48d8f226da6acc7d1446c1d2100270612910eb98a. 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/UKWGU2561117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e423d6cd399903b0e1fcff19d9825fb1efb7651e625387993fec0f088437af. 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/UKWGU2508525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112ba09804e5672927141b710bd92ec7eee673502ebf2fce0f12edf663e1707c. 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/UKWGU2566251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47bcd0c762dc7c502a5b5882b75c2861e7ecb2a47fa8d5522df19cebd091b33. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:34:52Z), 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/UKWGU2566252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0111b982470052ca9ff1840e75f6849a9373cbf79272c420406c83329ec7d1b. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/UKWGU2525501.