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 0x9b7cfb222eead8f7540585159c5c5f7589853e150ebfa42fa77a92175cbc30b1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fc8d547-bda8-4416-8acc-f8544952a2a0.json and https://artists.proofprofile.net/proofs/artist/1fc8d547-bda8-4416-8acc-f8544952a2a0.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 0xa4af6cc06a53d03e3a0f57c0aea508c9d8451ab0c9538be82854e15c52de5058. 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/NZRI11500860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd57f871688593f610b4a04c5ba4bd79711a3db1ddd1fefcb3cbcc92fded211d. 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/NZRI11500867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70510ac6860c4aa6a21be8fb2fddfdf1a2e41782d03d72479162c51bb1adeb2c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NZRI11500866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a9db284169260cb1e957cacff3c472030380f0a347391174eb9911a8e66a8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/NZRI11800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df151fc305b1b5174b84aa57cc11c1a105c8397b9d23660bf8eff88bfe0df59. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NZRI11803486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000bf11fd5b8238644d2b4d29405924ddc021a76981f9aa09acdd804da33ae36. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NZRI11803489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7ef41726476ff77151a6941cca71001f5a5b4c9301bdfaa55578569325be13. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NZRI11803491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2752d88013ee6aaadceaf528f0549cb7cd2b29df5cb0f2546cf059d15a4ad507. 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/NZAM02002286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29776d6292229dd599ae581e410a3aa5c7f66791fe82109475e070d324019fb8. 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/NZAM02002632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5cde9e5eb17b0bc16fb67b79c44f3374cf94fd082f541e9e37e9239a649fc5. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/AUNCC2100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e295ce1f41ed1a259658a40df860b8a9315aac86b30916f7cce25db6ddada87. 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/AUNCC2100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25923638fa689c9626df0485c6ad736bf176ce1b578011ef5fd529ebc862258d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/AUNCC2100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75f022b6cfb8babae9d661bc7763823656118285175dc3ff61255c2f0e917af. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/AUNCC2100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc076bac243154750752c64dbb034c680f33a5207340f37ec7422536cbc9f6669. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/AUNCC2100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67296bc9a2e059fd494f2c05e512326836a60a1c86ddf4d9c6a02c5847461fe. 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/AUNCC2100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b8f15f7952ee29b985949d375f0e5480a8518ab1173f1b86717e0de4e60197. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:19:58Z), 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/AUNCC2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9a5109d7c5f9e37104e578a1917571f80f43e4110cb45bc77ca10351b984b4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:40Z), 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/AUNCC2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511667d5e56692741e005869abe1a1c2df80a52b97544e5aefb5692536cceb12. 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/AUNCC2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bb44413f1aab0160f9ad8fe799680e5d6c100a088f0d6e5abda181cd4a4517. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUNCC2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b8f15f7952ee29b985949d375f0e5480a8518ab1173f1b86717e0de4e60197. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AUNCC2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63744f5f5ae2f7887d34ef13fbb7371b1683123297f8d05e4729737ad31f956. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUNCC2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd04fb489cfc52fd573e6c9d28c6aba01f374ebbda89befd9213706ba6fef363. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUNCC2500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769cb923d0125fac130dd8324f6f2eb6b26b08f12e18a604216f2bb66071016. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/AUNCC2500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ff30d45601eff19ea13d3b000a1adaeee73f031c1c7a3afeab3ea3520254f6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUNCC2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee119952908ab3777ab689e6872235e296e3e820a3dffd3597c5febdbf2be1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AUNCC2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bce157b335316f2d5691df2cd1b840218c346fa9589c0ff3a94ab1e8b5ad87. 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/AUNCC2500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2216639f181b9e0039a7360b2b83972d39466c3d7ec8f77955f6620e5afada10. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUNCC2500031.
Music from The Brokenwood Mysteries – Volume 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e295ce1f41ed1a259658a40df860b8a9315aac86b30916f7cce25db6ddada87. 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/AUNCC2100121.