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 0x8ca1112bfd2ad312d664870673fce31410f85f329be70d7982015da1fc5f1519. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47925347-6e46-43c4-ba1f-a54bb6e5e137.json and https://artists.proofprofile.net/proofs/artist/47925347-6e46-43c4-ba1f-a54bb6e5e137.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Under the Sorrow (Deadly Chant of Delilah)
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 0x9be204cac200706d9858040ee7097abc6326da850a5cb89f050ea7e9c670d818. 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/QZES71955547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbcbf6fea3ed177148a4a0b2fe44b0e2f04969db60cdd344ed03e2985162cc6. 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/QZES71955548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7ecefc1948514d18511e8108430ed95914518807956e0d1b4b0342e2c3f529. 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/TCACW1740521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c26e44551d6e469e861d7737a0506b38462ca143c5918258c4cd1397181df1. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/TCACW1740525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e28c13ede7ca3181bb4cdcb9224f61d0904f858914d7519e6d6e404b044457. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCACW1740613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e222bd997834dc97f70b0affb0bd7ae00fc5e72404ef15db08ac23325b9acaf. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCACW1740627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd6403b7f811830d77ed6e5f5c2b3b825811ca0840b82bc94f043b6ee3d518. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCACW1740637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efb42638b17cf93e581857c8f24bf4f157a5ebbe2860f2103f662b602897d77. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:07:12Z), 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/TCACW1741321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7750362476e1911ea57be30095f648aa312bf0c71518fea87306c1d29232ad7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCACW1741355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c203f5dea9f237ec1ec17ad4aca675af72401c672dc74323965895f5c0f39e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCACW1741373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ec4bb86416e16958012f2486231d5a4476e21f6365b3f423a994f513160f8e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCACW1741376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7d22101891ad46121ededa252ed6f0bd2d75ad328185cd8e81ffbbb71f1a9. 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/TCACW1741378.
Beautiful Villain (The Jokes On You) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976a369dece654460164c1646c47c8f328fc8a714aff2b0d2206400fefb66b49. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCACW1741379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fafebea41b72d8e225b6818342e396c59e7c7ac152c30637d3b0220f99fff49. 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/QZES71912132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f53ea9f8565f2a8269ba189752b776ad0e907a9c57078a1eaa199e7dc39609. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZES71912133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cd3550c48543bfc44f66dedbe4bf41c1b62a69f26c59504855575628408de2. 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/QZES71912134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9cf428f2bd11a1601ba1730621f0b9b02358f66bd2e2b50836e5e5a29f5b09. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZES71912135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d5cb4aac7dce7f31d26e1543b29126298883e3a757c2a94f079087d87a70a. 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/QZES71912136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f540ccb8d727af950f6af7d57acc1c721aace0aa954c0a1067671aaa7b0397. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES71912137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42172ea74df549bceb539b76031b310a065f2b8db8a2d6c4419552c2b7a2c59. 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/QZES71912138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efb42638b17cf93e581857c8f24bf4f157a5ebbe2860f2103f662b602897d77. 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/TCACW1741321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e222bd997834dc97f70b0affb0bd7ae00fc5e72404ef15db08ac23325b9acaf. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCACW1740627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5c644c6b60c78de80277427c3594ccaa6bb2dd10f418b8fb372ce240ccfd54. 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/SE5752027955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ac7254a6c8308cf2e9f60b0b3b40e8fafc6d7cf8f47b0629901d3b9b61c614. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:46:13Z), 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/SE6QE2027226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408879ed14061a69786cae36e22ab2e373f867daacc8939be7a694ef360eaa97. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/SE6QE2027227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d8bf72f8c7bd3cafdcf8434c71e2f689839dfdc257d00cd612eaf034fc5789. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6QE2027228.