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 0x0af1ed558140fc9eb1934bbc495487867dd2b818072a8c3040caa28f2f52bb7b. 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/4282574e-4482-4d90-b9e8-3caeb209a409.json and https://artists.proofprofile.net/proofs/artist/4282574e-4482-4d90-b9e8-3caeb209a409.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 0xac5a25d0ac439acc0f7d608ccd606c640c3eb040bab9b90e8ab641cd7479f114. 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/QZFYZ2061556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e369052b88abe020bc8e6b7867a610470c4f0e3d8197855808bcf9d58b0e9a. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USKO12200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc8ce2d69587a412e5db96cff1ad7ac8f9f139f4896b0b9680853a26ee33504. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USKO12200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae36e22ec93b10592fec32ca59f3af869b63dd76971d5e10275db253476673c1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:24:03Z), 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/USKO12200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ec068c62cefc4dc1b049f875e72cbe622fb1f0df1ed78fe1d30b51df15e05c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:25:21Z), 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/USKO12200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5674f8b14e9f95d93b5476530308fc1bf1a1bbc61ac3d5be454f0b3d03151431. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USKO12200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfc92d127aa0cdebe0987103006860e3b04c8b3e4118d33d04a845ceadb01d2. 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/USKO12200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89a5aee62cdf4b5395f67fc13f080985e9dba8be69df1c042f64b0424dcc5fe. 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/US5ED2304660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d177a0802f90301936e8f8dd825ae479dbf2c17383e4fcb98aef3d7c2e3308. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US5ED2304669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07ce21c703090895ce88c1844d9e0d739e194692abedfc1cd3a76311d764e95. 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/US5ED2304670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1830d9304305da3b00678d2055f9f657db3a19996b4af05fa73c103aab158a76. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/US5ED2406266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7f43f579e69bec289c1c93f3ec236089f5674340086c1e16bcceff7ec8cd05. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/US5ED2406259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384cda6a3efaed3a7df8a59f222fb4469842a7f954a756dbb9c4d346eb291c6. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:07:51Z), 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/US5ED2406260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd14927e734958c96135e39b1bbc83c51530504b1784205ff735dcdc68f30bbc. 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/US5ED2406264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1684f9b332c1b14120136962e1b110638cc7d80beb5ee62fe739195ed1990ef. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/US5ED2406265.
Planned Obsolescence - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9fed590ff6e846233d7980bd9e2ef1c55ab84ee74dc51b795a97c0967b06f5. 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/QM99V2502604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25340aaf8b3ac608f6d5eea9e1083089f704d0de809ca94617255f115a6edcdd. 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/QM99V2502606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccb81362d45423ed4a9f352e9bf2f5ce60b5eeb83408bb5b13332ddc8b68abb. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T10:00:04Z), 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/QM99V2502607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde82935afaac7c7fe6edcb663143e884139dea39b7352215231fc7648be583e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2B2204526.