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 0xf4c0cabe421ad5662763b77126bbe4bc90e71ee50ca11d6f95ea28159e13f3d2. 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/57f49f37-bbc5-43fc-8390-9f7f3bfce32c.json and https://artists.proofprofile.net/proofs/artist/57f49f37-bbc5-43fc-8390-9f7f3bfce32c.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 0x80540758f9629cc5be0d185d0b110a022e55fc5742cfe298a9267f76ae53645c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:12:58Z), 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/QZHN42439670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf101e8fc7a7fb3e941ac8e789e5d2158bbcdfbcef09d60b21f697e038239bea. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:10:39Z), 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/QZHN72459314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc8e01db5d091b7f855322d060e61322590f12827516c1c15e3060ca3c50993. 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/QZHN82402511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd462679d6a8c65b8902e4b55f1c4b4d6ef6035ada0112cd1a9ddae4687efe1be. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHNA2460149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8c31940609f45c5ff94b85737b02f9be8d65d37bd7b9d3ed1faaec7d3da919. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHNC2455873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2afc52024206da63b5431d770b971b4b22bbbfe6d5b13bd8bc5329dbfbb7397. 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/QZK6P2467454.
Death Valley Blues, Vol. 2 (Valley Heat)
They Were Stoned, They Were Sawn Asunder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8125767aaba2ce5e4939c39c593aed5590ba91e754567f1889d08e6d63bf37d9. 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/QZK6H2496282.
We Kneel How Weak, We Rise How Full Of Power!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5db48615f8ccc2095410fbb83858692fa589f1a5dde06f9e805c82d7588070. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:26:00Z), 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/QZWFK2406974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744e6884b184db218f5dffd8f144ccba453aebf84f9bf0631b83e028a771a451. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QT3EZ2489777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a393fa0a19ca6c54832b6796512fcce790c2c7b1659f2a3ce144dab603685f7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFYZ2577858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11aece3f75d434d478e95b2d9e6bd592b7958be9aa0b461a4eebee43095b03b. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/QZFYZ2577859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964c4304b8c3aff4fb29f02bd62af83aad553f7e24c41e8eee7d1b4b8731739c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:26Z), 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/QZFYZ2577861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cc9a48f2c0f6d9d7b701a59222eb301c99094448b95038dd5e1979dabf8411. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZFYZ2577863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0a13a7fed02d3eca19f9dafa636ec2b554359af8515291a0bca35f9e0a89a. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:22Z), 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/QZFZ42564265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1126ba6c9b1d74fa924ddecc9b36616e63365be52962b24e21082621ec8f1c. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZFZ72512586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18435bd8e0d33bedb2be1f778ac18f03a0a28d5c2e004e884a81d4cb3fb02f4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZES52599380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45557d4e8c65479b2fe6bfd0d45c3b4bd3618720b1728b1dbc3aefcd8e3ae6e6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZES52599382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e318639fe5bfc62c9760f5d47112ec14ee4ecb9c4237c7d860c6bab694b84e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES52599383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3fb5f8955ce11e569dd999b11e9051cff29de23f4aea4d779d976ad4a34d9f. 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/QZES52599384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5a7e27798bd168dab61b53338664a7d99164a084fe4191ec52644b4b46a43e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFV2424028.
Silence Is Golden : Explorations In Sound : Ambient West : Music Composed And Conducted By Flaherty Brotherhood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1c380f920148ae7918b25769ca326676053403c4498c8142b1500e34c5cbf4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CAENV2567991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661b86648e6e0f9a89420977f88900afd9a3a0781f9934bc0128847b840cc486. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZNWS2596584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03613a300de6317a155d8a634b5d249a56e8499a617d7ccfd3f32631c9c95cf8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZTBA2538175.
Close Your Eyes And Dream, It Won't Change A Thing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768088bcef7fa2182cc8dbcfb1f34337bd1c39508bd8b4b8f905061197dd61b6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZZ7M2534616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2895596a452a8a1cf1480fec71bca251b5f3d6153890c1c1907ff0fbbc51f37e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZZ7V2561428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031949c1e2ca145928db6c770748244dcc43d27ab3be134994d49cbb3181bbf2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QT3EX2509993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a05b8ee40d3a0eaa923ecab2b1e3396b1f0c2de46d3d1a9ec5df361d4837cb. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3EY2524962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c338b14a1306e69b403143d98fefca88f5cda783928235d2b245a3ceaea75a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QT3EZ2526635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b7b1cc1befd8995a53b76665348aab4595b8ac58ea9ee5e0ad326b5171e645. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT3F32594555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a85055ca2680df652d5701909772a82c18871144612b60aca22ad54c2775154. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:11:35Z), 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/QT3F62587283.
Death Valley Blues #4: The Soul Never Dies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491630e70bda60166a03676601cdf22857debc95352954ce0085c800b7beb5af. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QT3F82516714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcded74722de32d09b0c52c639c8e892353abd8213336b6b3e1d31d4e5ee5075e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QT3FB2549342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d4af887bc0477475c1f25582011193e46536f7e1cf0834142a327433a22905. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:24:06Z), 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/QT3FD2503498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ed24cf120d8dc7eaa2e618ba88a9dd0339f0804e65fbd887fb5f2d746c2fa5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT3FD2567760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc6eeda88facf112b018bbfa328926fffa46b8c1205271496469a1e08141878. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QT3FF2577755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33985494c8d9529de7969e8c7e7beb92c62b09f5ea69fc8e1a11469481dcf2c2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3FH2558578.