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 0x2463a0d8dfeffcf06598f28eecb6ed66b07d7d5fc13cc967b427c63d1932d985. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58c5d955-e063-4415-8a38-e80af220e917.json and https://artists.proofprofile.net/proofs/artist/58c5d955-e063-4415-8a38-e80af220e917.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 0x2ed025ff2f780eb45a24885770d6685eb97a226cae9f9f9a3249230da0c7bcd3. 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/TCAAW1119438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d572fdab29275c6b583ef5311b37ee1068444a7a6f38c0452de7cdbe6fb4c6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCABK1242128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3454134035d8956325cf5aac13c5e9a10ff0f9733e78fe8c2d6c832bab926e3c. 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/TCABK1242221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1844da50ab7f14ae766707b83c773ed566e037e38557b2edd5878d724404e5bd. 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/TCACS1635768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e2d2266a162c0c082acd9a21545ccba314c07391a54f21f4f5202bbba4aac4. 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/TCACS1635770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e8e7f8f9e331fb4d975e0da79c1f595be08902a500724ce964f62888efc14f. 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/TCACS1635773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22801a91b4288c1d37dfa589119ab513c7d147a13126a78516ddf4a5c81bb396. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/TCACS1635775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800b7fd693fe674405324b9413ccb24d9699e1e07f964a90a98a35ee0b10785d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCACS1635778.
Psalm 91 (Under em Schutz vom Höchschte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea995083c9649df839021d33ac7b8b079477918e053e3980ed71d9bc61f87c01. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CH7812042122.
Psalm 91 (Unter dem Schutz des Höchsten)
Psalm 91 (Whoever Dwells In The Shelter)
Psalm 121 (I häbe mini Ougen uf zu de Bärge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcee44eb5dc87a98def70b35be2006fdbcdfc93abc2e7169cc03c5bb09e21840. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/CH7812188662.