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 0x7f0829787b118d2601d2b559f59b5e57b98d34072766df642f1e3c5e30bcc700. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82bdb022-9e75-4b55-9202-47ebb1fc1d43.json and https://artists.proofprofile.net/proofs/artist/82bdb022-9e75-4b55-9202-47ebb1fc1d43.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 0x3b2291d5009226e63a2ae9ad0359469a1239f3b74d74b49efd3d925b2f82ec0f. 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/TCABP1354794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec910f23b92581b2cb06cb351dce69676233462a1b287603b32a235cd8ce2f17. 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/TCABP1354830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a94e77dd5438cd11a07363110728e45f6fe993b17682e28c1537ccd71f391f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCABP1354832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd458a45d80d6aa9eebbf40785bad83ded539a09fa7a655c87c3e4dd6ed523e7e. 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/TCABP1354834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755688ad3ee9d44a0ca9c1c66316abf96e589b996331b4eef5d160f30ae04b8. 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/TCABP1354843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b693beee0a519ec57d4fdbd8a80d5ba464fd67f50bd404fbf206b0b30e7e1a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCABP1354846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3623e22d2a4eac89597df85b7fcdcfe9913af810a6c3e9c13b73f835d645b96. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMSNZ1461073.
Magic City Hippies (10 Year Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bab835547fe2ba24f8e2ecd22cf13f1c2f9cf10279c3a5080de5bcb6742586. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABP1354793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2291d5009226e63a2ae9ad0359469a1239f3b74d74b49efd3d925b2f82ec0f. 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/TCABP1354794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4e7fa704f57eaac71ab55a06e90fdf481b50e5892819af26c6d40f399d3738. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABP1354795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12b7d8a20653d51d1320159d8868c40a68c04e15eb68bc8989934d8dc315d60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABP1354796.
The Boot (Corazón Reprise) - 2023 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24cfb2189e49bab95b29e48d382a42086b4babe57ad248d6adceafa343c103e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCABP1354797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea5def752b86ce3ae89e2e089f9d72c3175ec44f45a1d5e580e189250483127. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABP1354798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1885b92c3ec018831a2f9f84b09ba610298315be90892be2d6eae42ae9003cf5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABP1354821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec910f23b92581b2cb06cb351dce69676233462a1b287603b32a235cd8ce2f17. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCABP1354830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a94e77dd5438cd11a07363110728e45f6fe993b17682e28c1537ccd71f391f. 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/TCABP1354832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd458a45d80d6aa9eebbf40785bad83ded539a09fa7a655c87c3e4dd6ed523e7e. 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/TCABP1354834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4b916a287821c1e54a8ff93fab5241dc570c7696028d33c13b9af98092726b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCABP1354841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755688ad3ee9d44a0ca9c1c66316abf96e589b996331b4eef5d160f30ae04b8. 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/TCABP1354843.