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 0x56213d1c9e3a8bf78bd2fe199fa76bc30faacaea40ef758adac0d2cfb4f0098a. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16225df0-f2f3-4df4-935c-496b0ef59b45.json and https://artists.proofprofile.net/proofs/artist/16225df0-f2f3-4df4-935c-496b0ef59b45.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 0xa6c5693e6db106fb0548c6be69b0137c0c4f6f0a586323de4f715013c12ec854. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US3U82400445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad676391b852191c3a6a5b86a38481111580de9cb8d0edcb1152be0cea35fb9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3U82400447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c44ad31a58d93bd951b35be7a79bf00af57709438a13354bc0e4b8ac6d40fb. 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/US3U82400448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06ddb06d930de56e85a24c8ec060ebc96c439ba8b7d6c0884a72325fc3e2e9e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US3U82400449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a32f3bb99dff74415fabeacb19d315343936ee23904b5f8fa60ea283f5e922. 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/US3U82400451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcb0405a8ded8cdf584ebdd4688a78577328833b06e5d68dec1abefa3ade1ac. 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/US3U82400452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe890a09d1a893e5b2f0769b5842c48795076eb1378398003af6f5ffafc612f63. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US3U82400453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08797f14eac96f0419d401ee507efd58c20bfbf90e35ddb4fa15af7c7210ae46. 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/US3U82400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a2f234532bf44a8cd09db7a0d6b2b79bb84e1ee3b0a68d4afaf23016e63ccb. 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/US3U82400455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86da85cb0ade2a72c7ca9e232992efa50884a7fcc6acd757c0c2d73f1aacbc58. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/US3U82400456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9999e6c59ebf15a9f16f2014055c80c2fd90edcca81d5b8b96d2c8c93289cdb9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US3U82400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7ef72401620b6928a11df4d6eb052d0362adb19b53e0273ba3c675f4180f24. 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/US3U82400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fd215969cc63b0e3e52e0d6aa85fd2c70196ef04641aef5706dcc273dcf99a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3U82400459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca783af2e106e5883979aab15961d76940cb0ba2ffe3fb5d93735430bbd4585. 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/US3U82400460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dc14c246e2d364ae69768360d032780399153e721769af520b782a198e5273. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US3U82400461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fc97f1e1009824afd91373712d5a8e08d70905d3129b874af9ff8b34a196f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3U82400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1f5f44d1a2cea17025f9f88c1d24dbc9370c1ee50662fe30489a6837c9b208. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3U82400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866b5c4ca2990cb2d99acaea990c696693792a52a3d886bbb9d059bd8e8ee8bd. 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/US3U82400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea60a3f1eb52c58cb2a3570fcd1ff51136292ac05c881d3e64762a0cecfea60. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US3U82400446.
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 0xd010068f387feb13617eaaeb4dd630f58d553c7256f6acab6764509dcc7c4c85. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US3U82400450.
Gerald Wolfe's Gospel Music Hymn Sing Atlanta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea2d2c620f2eb1de6733938982a5c2ad664903d73245f9af596bd40702aa3a3. 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/US3U82400474.
Gerald Wolfe's Gospel Music Hymn Sing Texas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca12334e8a788256d97db7228d9c5c71823690c979d00f023f33c079b567f7e. 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/US3U82400484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9885c2888d781ce2f5b6685cafa7fe038c83a6c75b1d7dc8e7e2f1b43ee16a. 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/US3U82400501.
Gerald Wolfe's Gospel Music Hymn Sing Heaven's Jubilee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec49e510fdb8527d00723afbcc5aba29ba7590b59cb30c6f2d8592972494220. 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/US3U82400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ce23e509ac5310669d4ac5ab6a6175c27082db60778480de714399f6bf54ce. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3U82400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423926c30a28c4f13fe362d2d284d8d3d3e238757fc127580796e122be7f5b91. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:00Z), 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/US3U82400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6935b889ff27427eeb52099d1abe13bce6ec77fbf98b69da9e9b49e5ef22704. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US3U82400518.
Gerald Wolfe's Gospel Music Hymn Sing Live at Lee University