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 0x9b4b9992564d2730d246c4a90a96646764d9de13c1f244681ed900dbbd1d6be7. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/493e1f93-e337-452a-9ecd-fbb3722186d3.json and https://artists.proofprofile.net/proofs/artist/493e1f93-e337-452a-9ecd-fbb3722186d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20th Aniversary: The Very Best of Z Records, Vol. 1
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 0xff5e1a41735049fbf1aad055d1c7462c109434aa42ce616678db1959117f242d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBKPL1364980.
Von Groove (Deluxe Edition) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709bbc87f88fc17571d307aa82066522cacfb758622397e17cf3208c5a297d79. 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/GBKPL1375897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d6d7c8e16298838d6f408a8282307e1b0fb27c72ea37d5c6bd413dae46e293. 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/GBKPL1375898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8c813b434a34c744f156022ca46fb2ef6843790bc30a4a3478cf70a0592e22. 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/GBKPL1375900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fac37a6366f6fd5eecd0fb5d7a85cf595abe1af86893f9f05094bdd851a8c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:45:40Z), 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/GBKPL1375901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e642c1320c4e472107b545a09d3fd838d48328b28753704d02cecf41918d394. 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/GBKPL1375902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978277b50c0d067fdfc78cc2776d422ba6da4eb4735198d052d0c73006e5dac4. 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/GBKPL1375903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc6558eb90f7cc1dbfe221cee8616f8ae9e94070b3dea97ddd14a58381eb994. 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/GBKPL1375905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd55ed734b5981ac3fe1946109f583731e89e1d9db4ca609190f373b9430844. 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/GBKPL1375908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e43b44b8fbf36c8b03ee0c0b068ae6b45754e1f99e5c10ee7e63d5993250ee8. 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/GBKPL1375909.
Soldier of Fortune - Remastered Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f558f6bfac59a20bd53644a428f752e2220d5698bb1e486215fca3fe56b75c. 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/GBKPL1375910.
King of Your World - Remastered Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c9ef5188bc1b1e3711ab18adb924b09eef50eea76e4a8202bec596fd8ea77e. 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/GBKPL1375911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a4381b0b56bdf11ef16ef6f1709b2a2187ab602fd51da8a79b16cb1c43a9cb. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBKPL1375899.
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 0xa261a66c8373ac9730fb85820e3a3c1d45abd1679950d3444d3a1b6ccd1c97f7. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBKPL1375904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc67d702c455a80ceb2d19a408ba884cb298dec9eaf2f5bb0742319f9b9b739. 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/GBKPL1375906.
Love Keeps Bringing Me Home - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3e84eec75191daddb089e1ce416595aaa5d6831962787c3a0560f43d1b63cd. 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/GBKPL1375907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49c520d67fc822331b972df5fba9f2a688fae771dbad4d3d6c9893730a1c61d. 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/GBKPL1561986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7bf80d44b991117e905acae1f7c70b355ad3fba708180b795788373c117aa1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBKPL1561977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f226c49f96796099b93805ea1b628e87cbb9db8c67096be229a77ba19d8f6ae. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKPL1561978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a81e3c05d185dafd84f0a73ea62343eeb2446fec5fc3c538fff0d2f1904982. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBKPL1561982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c75b9d736790929794e7412609020076dddc871efd53e526d2dee958b14b4b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBKPL1561983.
20th Anniversary: The Very Best of Z Records, Vol. 2