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 0xb8d7bb15a7e8f4f7d25963208051242d213662468750e65a4968c38becb191d7. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5af46c51-cdfd-4a91-be1e-d85971025f7e.json and https://artists.proofprofile.net/proofs/artist/5af46c51-cdfd-4a91-be1e-d85971025f7e.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 0x548eb43d1e3532f2fb3e018a70f396d1d62950fc58a79b6cc2c0c8bc08f6732d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM82385224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a836f24d18db98fb98b68aba398963823a14e480d33f616926d994578c553e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USHM82385227.
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 0x767f31978f748802e7535d783d5a75146c272de9aa73ed0a369ed8ec611766d5. 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/USCGH1775365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89d81da1dfdd36c405b1d22cb7069b8a3dc1b5ad022fd4680092e704d94e98d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USCGH1775373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac95bbd0447dcd516452fb305c88c7bcfb7445f696c0d7c92968a29cdc7654f2. 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/USCGH1633007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7143a5d1d75e41f1095376c45300f0a564a01da38b2b233df544f84fd09ff0b5. 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/USHM91353328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2135e595e12b67102c0d1ddcfea72bad3dd6707a9f2d89bd61c703df6f661c3d. 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/USCGH1249732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de311616a269c616f1852fc74e1fa5e59591b74a5109bdd12024f734b60234d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USCGH1249731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff1054269d83fca0794d034a6995a32b7183105ffe3e62598a4ceb3e91e8dfd. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USCGH1249742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4bb168c233fd2075deb3d6949413cb81f15bb5b38fdf8081c2b21ec182feea. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1001561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346441151f3feb3e1a9367d6b021a9d395a6a9fbf16295e865a91933abfbe3a8. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USCGH1001550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa934ab17f12860abe8c373164e0c6248760e5409db53303c57d9911fb80294b3. 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/USCGH1011261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1127337f26ae7d1a9cbee00e8c55dd34766e2d5995163d0a990faecf2924c3ea. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USCGH1011258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eed619008b5e8f2383c29d95abbd832b04c2ff07b00b9e74dbac46aad53bf91. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USCGH1011263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f7a8d559be4413504f8f2531236de30a4685b474338885d944741971b8da8c. 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/USHM91251415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb8e7da935f9100e34c16808ba15eb3faf6c451d345924349d3c1f913d83ae5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM91251413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1103ea9f3fde63ef01b0eeb05a1e539bfd2abf604992b4bcda3f1da4b07e7162. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USHM91251420.
L.A Ambition "The Best Of AOR 2000-2010"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b88532c380d861b0e1a43cbd2b17898ccb72c7e4e2366c6963157bf5dbb0ec. 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/USHM21065661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd88a66ec4bef528d9bb22077587e1c4ef45074485b0a8fd66001794c0abfd3. 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/USHM21065662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdf0f8561d35a8c188f30e86e61349c343e443bb103065f4401e977cb3c2fac. 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/USHM21065663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da0ef9c732506dc70640152af2d79bfdadee5066968c0d89aeb4c41297aa6ee. 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/USHM21065664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5b9f240e86b34833787e2ee8741a8001d05a9c2db2acd53f2b44de1979f5df. 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/USHM21065669.