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 0xcf12b376d70b92257e02067cc2c0047019a990236ac1c988d1bdde699a4d69b5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/749046a7-51b7-4156-8027-7ce3ea33ba4b.json and https://artists.proofprofile.net/proofs/artist/749046a7-51b7-4156-8027-7ce3ea33ba4b.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 0x6c722e8326bdef8003fd62186b6683512d1be2edd4cdab1a29c9b4ef2a711e49. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEAF42370032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c28cda89b6f2ebad36114cdcd2105137976f150ccd1bc14f7741ea5a9997e3. 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/DEAF42370035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffd450fcd0a8eeca71d279be507cdb23ffb41773626faa2ce66624f5866b81e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEAF42370033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02eaaf5c8327cdf9b8f51e117916491540ae5e1729f442e2d03e2cfbfb288cc. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:49:40Z), 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/DEAF42370037.
Du hast Erbarmen (Wer ist ein Gott wie du) [Live]
Majestät / Agnus Dei (Spontaneous) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa19e4fb886d3b4c63c2b1b8d56d25a4c9772a9484b7f96752ff6db4cbc25a1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:38:49Z), 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/DEAF42470012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fe9ab82c2ee198bf6c23e3a2fbf890fb2389704a5d6a9b45d5bbd1e7645230. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEAF42470015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932f10dce486d21e486016be34f6259170fc4923645535e067db4141ab3170bc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEAF42470016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe591bb16382acbe40a09f59c428b2b9a8a75a77709c66271fb4ef171277403. 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/DEAF42570002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5761c2e054d2907c03f1fd37a8a3ecd01ba7dce68f391dd64e2fcc380c421e74. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:34:36Z), 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/DEAF42470004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57d1c55d5b7803ccd93351deac9ae28ecdd420fd8617c90640fabd5ff796e4c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/DEAF42470010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fe9ab82c2ee198bf6c23e3a2fbf890fb2389704a5d6a9b45d5bbd1e7645230. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:11:16Z), 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/DEAF42470015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22df3b0827c576ef27bff8109cd3c8ee8f2ea0f3f996fa4e89370a8f2120de37. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:48:28Z), 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/DEAF42470008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932f10dce486d21e486016be34f6259170fc4923645535e067db4141ab3170bc. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:28:34Z), 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/DEAF42470016.
Majestät / Agnus Dei (Spontaneous) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf004f6ad942a529a90a155111ea1411ff0d739c96a8c70ae05bb4dc3df571858. 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/DEAF42470006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6948c0e5cf1f8345ccf820f79c96aba462590b9d4933c3152fcd2cbe5e8363. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/DEAF42470013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb999e37dd5ad3fc1b279a5726158b258e4190d5cf868f8bc109caf29e46911. 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/DEAF42570001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c03c396d42f3da0271339183d6461a30476978b87331fec9355b6469d681d9f. 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/DEAF42570003.