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 0xdff1896331b85a3e5a41d9a48dcc26043a905b77d7d0bf9837bf02369b422753. 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/e2ac1e7f-b904-4cf1-b7f8-39c583bb9ff8.json and https://artists.proofprofile.net/proofs/artist/e2ac1e7f-b904-4cf1-b7f8-39c583bb9ff8.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 0xc755ba55d025f05edf3e877426bbb45eb8572094d9f88ae093c800a29a0c0950. 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/USC4R1503366.
Nathaniel Rateliff & The Night Sweats (Commentary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041e2fdb810a089dca5963b94d8d097f7b3aa395f09554590deccdacda4cf0eb. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USC4R1604870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e560cdddcd19f5db698c950dbf6cd0655ea03191c727255f11deb3af823c6e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/USC4R1503788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bb93c974bc43ca180ecdba542e5c997d4bc7027c2f415bf3b3ad5eeaec27e6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USC4R1503360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5970d3c6eae316ed225b25254f73ea7e553313b5ce7b4f97bb0e85d02e6dad8e. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USC4R1503359.
Nathaniel Rateliff & The Night Sweats (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5970d3c6eae316ed225b25254f73ea7e553313b5ce7b4f97bb0e85d02e6dad8e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USC4R1503359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bb93c974bc43ca180ecdba542e5c997d4bc7027c2f415bf3b3ad5eeaec27e6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USC4R1503360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3871d7ba1811ad3904dc1d86980ce7fbe10ff6cfda2ee771eaa8b3aea996fc1e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USC4R1503362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f557d0b062ea96519933ee400ce27d5c48e27d0a6c621186a314286177f5bf2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USC4R1503363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d676f1c0543b97cd5e01eb7835f218bad52f6f0170afdc6d854f6ed6a13a18. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USC4R1706252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0480166d4df1b4e3b5756fbcb6066f3a42cc6d6991ddc522b05a663b9da3e86d. 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/USC4R1706253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb876e55af5ec1229939c297137ca86bd2db4e59c94438759383e4bc93c89974a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USC4R1706256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ac7117c0284dbf7154debdb057c1cd22099bbfc8d40d0931b36c6334c081b4. 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/USC4R1806380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fe2f53d0a27862004b98cbf80b22144d93bcb126f5136442dff1fd4ea0f949. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USC4R2331839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974f4197c53a57c7192eb5e6e83a7991dc82ee516d51cab3f9eb024c0748b29e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USC4R2331838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fe2f53d0a27862004b98cbf80b22144d93bcb126f5136442dff1fd4ea0f949. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USC4R2331839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0a638aa6f5c038dcfe1a7e10954f116fa14b4b306ba8f2811f5af79a0cff8f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USC4R2331841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd653ef917618d11eb886cfefa80bcb3630cca34a3d72c930e6ea839a4d25405b. 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/USC4R2442513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1aefcd835c49a0b0d8ce4248b8535ef6f6b85b933438e4659a6d24019f81fb0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USC4R2442514.
Nathaniel Rateliff & The Night Sweats (10th Anniversary Edition)
A Song For Leon (A Tribute to Leon Russell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8835fc3f9fa58806635100dbd44f54f863df5942312a635a6fb2078a4fddd84f. 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/QMB622300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5970d3c6eae316ed225b25254f73ea7e553313b5ce7b4f97bb0e85d02e6dad8e. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USC4R1503359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3def1edc83823ffbfae97c86c233c9562028042f9df6576be4328272f66945e6. 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/USC4R2107144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254f3ca3d6f168da0b03727cb051bdad97202c8fc85142b19130eb27fa6f59f1. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USC4R1706367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254f3ca3d6f168da0b03727cb051bdad97202c8fc85142b19130eb27fa6f59f1. 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/USC4R1706367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a5fd72d8a464aa4186707aa407b89b96614db50ad451dd9c301320968d8b26. 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/USC4R1706361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffb8828fb9a72d45bb0f70591463ea86e8dd8ef9a75e8deb96a7dc1a5b749a8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USC4R1503368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c7f598054e6a36270cf8088b70f6f4a560e466be0c161223290b06c5877947. 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/USC4R1605606.