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 0x5b44ae4cdb4b46ff2835bc8458730384bd16c36cffa873852fd2e1a2d9560e50. 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/50ce95e6-0ffd-4072-9e02-d63863cf560f.json and https://artists.proofprofile.net/proofs/artist/50ce95e6-0ffd-4072-9e02-d63863cf560f.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 0x07f7d4e64dd64b151a30b28aa35bb33095d43c8a9bd762e00ec5a770a90c9bf5. 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/CHG052400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593e96cff88cfb7b2736c629911fb9d0cea02300367d48890e939b2b6a80b947. 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/CHG052400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b76f6fca12784ad5dca0399a2a33f4f9e2f02a1f2da5fb1f2d4c06495d122b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEPI82101944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8e1959da7766ccea164bd1c41fca981a2d232d404aef4b0b5818a064f0d7d4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CHG052400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6324fb8bbb1e74c3a85f03f6d43ea4448f7ffcb42ab6d9b77c9ab217ce183b0a. 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/DEPI82101942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10810544726559b41f6a60d047fa1f960f50d8b31f08ee19f52223e953cdd6b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CHG052400233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa846907cc6900660119cd8be9b021959645abfbcbbc36cecaa5560eda8a3f1. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/CHG052400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8289d911945e0a8063aeaac9dd0b93511c7c58100d2a6da08e9a838a041fc5. 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/CHG052400236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cdf132b450129d4d37ef5a7f6d5bcd62958ca29333e5febd76c60423ea82f3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CHG052400238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9679fb569dbd465af13caa818cce37b306f6c2b83db6891b949e47c44a77baeb. 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/CHG052400242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c0bab82aa67a87074b5314227f583c9ae0e2b4322e9d8e8ccc2c8fe77b3723. 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/CHG052400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e73f892f55f18628fd47edc410faca0b528208ef61599e9fca1895c2cf1c69a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CHG052400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88aed7016aed7edea496967ebeb3964b4b62f02b35aa26dcdd9b64939df50a. 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/DEAF50700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb8e0c9fa1e5bb7f22c88b7aed2d1fd35b29f66348eb37d93e400b83278a123. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEAF50700015.
Stand Up! the Gold Coast (A Tribute to My Country)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97058288f768c56be8d23cbffc920a0b72f7f6d02ebe08d61b7a268a9f5c200e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DEPI81701298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193997d72812c1127b754ada40012c1ea74065b6b063c988fb4bbea80b44ea64. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEPI81701291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697b15840e11becba606f1f9b38334b84e6b9d02113ad577778c79f95698f7cf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEPI81701297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ed9358cba0fbcc23fcb15a99afe2cec8a79fc0e2e5e0a6e5ea5ad5bd1504c1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEPI82106369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20f146716b53e77da142b5f80f4bacae1afb9dc98f30f73cc59937d51b0fa68. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEPI82416694.
Outside (Lockdown) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf65703212ffa9e1a1129884d4272e00fd7093c6c78f46cdf2307bb0e6b88c3. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEPI82416695.
Hansen Fire (Hanna Hansen Walk In) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c43bb5fe0950a282fa7c4456cfdc19b2d95938ff329045f9bcc9d0f272a30fb. 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/DEPI82416696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadff228c9b08d66d1f115aa8d3e0a8ad8375a12d4855b117de2f83f2db471733. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEPI82416698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcc34b4661f2d1c3d4e36deb762413c8b622b2f24cd2383cd616060b33772dd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEPI82416700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9ecf78db4fc8eeed76e4c54c24d4d390025899109d669982d17ad8f9ab1178. 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/DEPI82418712.