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 0x192b68f19fd4be4fa5292857f1d28a868371c3476abd97a8c189c45bac25e07d. 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/80b6585b-11d6-4e2c-b7eb-9890bd1fadeb.json and https://artists.proofprofile.net/proofs/artist/80b6585b-11d6-4e2c-b7eb-9890bd1fadeb.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 0x76cad1150f59aca418582419ba5342b613bcae57332bc13df6347f8f8114332c. 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/DECE72302370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e741bde0d18ed63ddc79161949c9d408ed63a5bbd69528e6589c0e681844d. 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/DECE72402359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02ef50734824564224604792a25531c7659035b4e992ed33d9b03a86cb669c5. 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/DEUM72504644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268c63ed3b9e516f05aec83faec46355f912f58234bba657f2b3025ba392947f. 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/DEPI82213193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2cc8be2963f38ebcddb58e1961d53b988c01c3a57b2bba467b956d274614e3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEUM72206671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3a483e15f3e1ff858d78c0d66cb3c8ea031e3df33231c6a0676cfe8e59c88. 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/DECE72300813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3a483e15f3e1ff858d78c0d66cb3c8ea031e3df33231c6a0676cfe8e59c88. 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/DECE72300813.
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cad1150f59aca418582419ba5342b613bcae57332bc13df6347f8f8114332c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DECE72302370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f27db5ac5500af0e2d4ffa580bfbf2f22cb6be2b42087248603bb356c5785a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DECE72302907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c5710c13ada2b25fa67654cc1e6f4c5870f37859c927bd6109c9febe7eb2d4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEUM72400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9355b718be978a65f9294a45ba3eeee3870100cde199e9365914fd826620eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DECE72400824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f27db5ac5500af0e2d4ffa580bfbf2f22cb6be2b42087248603bb356c5785a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DECE72302907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2cc8be2963f38ebcddb58e1961d53b988c01c3a57b2bba467b956d274614e3. 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/DEUM72206671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f1bd9d71397fcd16f0624f53ebfec66dd4305be41c1308633bee1bde8e1496. 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/DECE72401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016c077d8324483d1ddb7457fa1ee8fa1bfcd9df5b9cdd5ed78920e5e546c174. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DECE72401558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268c63ed3b9e516f05aec83faec46355f912f58234bba657f2b3025ba392947f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82213193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf485eaa9d3d61fe90875ee626f35c66170662d4c84ad65d2029a0070605ecba9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DECE72500567.