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 0xbd925a0c0c542211da87352a0a91b9ee02514bae9bf4923f93ab8ff066c463f5. 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/bf740471-e590-4dbd-9f94-aba8fe11abde.json and https://artists.proofprofile.net/proofs/artist/bf740471-e590-4dbd-9f94-aba8fe11abde.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 0x5507dfd4795a80f790c8068cd7c6418cfb5bf14bf393c661968d921c7f7efe1d. 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/USY5K2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b8211f5ea78484b022e2fb16df444ce9fd0e75fa02919a1d0b7313e4dc7653. 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/USY5K2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4887ad7d85d20d13127c1fb81db5bf55648692e0ce02053c0a2e5ccdade6e97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY5K2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73a6a97d4d2269c873ce19cfa98d71097b4da7f3e7fbd704e7b56fbdf064086. 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/USY5K2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747100c332696b8e94a5776e962dbf0c28af3dd24bc8e838db3e2f839b7353bc. 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/USY5K1800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1224c23c339cb16311c50e22e68bee23c602c87f0ae2f2f9eefaa3103369f96f. 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/QM7Q51400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa094f876f510894e89b8df01c5a1f64c178d54bc37fb432d1f258ea128915abb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM7Q51400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038679a1f921dd8ceb33930458d219cd96833393185c035d8682d515b715d8fa. 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/QM7Q51400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c0c7c32e001648f8ce4296513d7810a0eb26bade8179300bf332e539ed0e3f. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM7Q51400002.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ad6ba7bead259178031303e2b7d883d09ea009c8778aa48bcb3890a2b8480c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM7Q51400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73445e03f23faaa3adc2492ff7acaa44779b769cae5964ab6f875545d58cb3f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QM7Q51400006.
Sing! The Great Commission - World Tour (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4845d563ecc4b24312103700c9b1c141bda9f5cc2975340ee5f25a140b6d7cf. 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/USY5K2400007.
Sing! Live At The Getty Music Worship Conference
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce76c386f3bf628f8a403f653e20bb3ebcbc02c3934b0e683f02366adf40afb. 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/USY5K1700107.
Sing! The Great Commission - World Tour (Extended Edition / Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5507dfd4795a80f790c8068cd7c6418cfb5bf14bf393c661968d921c7f7efe1d. 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/USY5K2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4845d563ecc4b24312103700c9b1c141bda9f5cc2975340ee5f25a140b6d7cf. 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/USY5K2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f1c73bd916e9c5ff02c13af7cf695886d27b586966ed53f40f017dd31ce59d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USY5K2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baefedc87c72d456ee2e9ad5928128accdf287c561d7fc5bd2f6825737a7597. 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/USY5K2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c47a7fd5346c02f20c6dac813f73fcb58d9767aa34a96aa9f58b5bb79acad22. 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/USY5K2400043.