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 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 0x683e002d68b40b8e897ac111cbd1e756c025cdae68d0846cc19c8a166ffdb01b. 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/18d4e1a4-98e2-4b01-932b-9be087e1539c.json and https://artists.proofprofile.net/proofs/artist/18d4e1a4-98e2-4b01-932b-9be087e1539c.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 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 0x75c144ad756d5b4c20d57b43d67e6479972b108bab331475e710a846dce3d909. 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/QZGXC2300972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3245791573cde193ed6b1b2349e138d0ec2fa617c16453fdc05f75583e66aef6. 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/QZES92032324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d59e36abe6745e2ac42276a0f2997f71228a01de05a4d0f8cf4c69a8632570. 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/QZES92032325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe3eaab0fe088b067e53c1345fdf223b43ed0019100e6f112b9d14064a0736. 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/QZES92032326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb59f2b1bbd841aefe90066af646647b1a5650f9f30e29e718bb141118bc364. 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/QZES92032327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a95b4883eca8ed6eaf227aba1f5d7488f256fa95638e3475c9ce56ab4817c30. 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/QZES92032328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ae64cca1ff88d9a7683f4a92a21cb1f047afe9abd1a4a50867a71d22dd2f00. 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/QZES92032329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dd5f662d98e33b429dfea51534e3b2f363b9ac040f738dc67587e7ce5159ed. 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/QZES92032330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c82859fc03f62fb6f7d8486191215ac563e6213b5144548d8f9caf2b0b7f5a4. 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/QZES92032331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aa714add4ebbb7950b4cf7f6e0cccbcade8f2033c850ed338dec1610426184. 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/QM24S1918231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076263da15387cf71b7868839a0426ca741a1846fb7b40299abafd22e7d70734. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S1918232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3fe53e5e755c007facb4c101399ead77fd4163b5175d7837fc65237c302ac0. 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/QM24S1918234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd6ba25727d6adcecfe1814bef5cafa34d23c4643f4941cebe847a53269543a. 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/QM24S1918235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1102676b248a859f06614d4eb910e10bc06d291efa96e74f1017a5019bf7e0. 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/QM24S1918238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982f0c93ccfa32886ec0ec4edbd231c25ed639b498dbca01e36f1b76bb3b7913. 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/QM24S1918239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0169af301e64316a61cab93c665c2948d25755f17404739d295e9199ae6fce1e. 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/TCACI1554492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dba6155837a8b493c1300391e194661714de5a299f20bad24cb966145e2a4c. 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/QZHN51928976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf898281066786de8738b94d0cd1fc4049bc81140b647dfec7032f9d53c85e6. 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/USDHM0800339.
My Soul Longs for You (feat. David Brymer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fd49809f520b4b64492b51b25c8a5430f883b5ec304dfe0cabc939f7edd207. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USDHM0800338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068ede66387aa3d6634a7bc6812e12e782c6882819258e7cbf0ce3b0a718ac35. 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/USDHM0601927.