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 0x0e9cd3dc1252dc0b20693cb79fe6f88fb5493bad13d60f1a75a5b0e99a042f75. 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/00779709-d238-4d75-8e49-65e48c46d95e.json and https://artists.proofprofile.net/proofs/artist/00779709-d238-4d75-8e49-65e48c46d95e.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 0x83de8c67c6659e60ea90d387d5207adbacaf5c561dafa5cc0b9282c680231560. 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/DEAE61101079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674fdc86b428347e0edd3a5cc524cbc100e23806a9ea7252cf0d02805f1365f4. 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/DEAE61101081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4b9e27352c5937665a3724687d062fdd4b89fe6b1236ce2ad260add5664f3c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEAE61101083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1369ea06548becda6a8d84d4b641f68e55d9aff277e9b741f094b6e2c3b3e0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEAE61101084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c745d7a31ffcc1ee1bb81c844599c3c919c198410059031b7cfd6bac6639c5. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DEAE61101085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84077b8cbe9e2f73d6dd411564e2ce7555f1c2d74e5781c839cae4fa8a925e87. 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/DEAE61101086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0162222acc33525ce254c71e52dadc3991cbbbafc2749208dd0b7191f43ea34. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEAE61101088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6ed51f22374b46858e3d5dc512a5e9dc64f4f2456c7d770857c636d155b100. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEAE61101090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb6919fca6d310ba6a008662ab1bab62b181a424487d74317f8b2425069c75c. 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/DEAE61400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55e497c7c21b421ba50212787b396aa25fcbad0bbd60512a334cd7fa55b4064. 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/DEAE61400095.
Thirteen Thirtyfive (Live at Haus der Berliner Festspiele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60551214f836aff0a2714bac294161cecd414441514a19f1725d92641319d27. 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/DEG441790813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0a71ecb6a2993535b53f3b27d4e2c7256e2eb8087290b38242e24b52acc545. 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/DEG441790815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645f5e644a4bdb7f6db3d4c359807b480e6c3353cc4873f29df5e481ceb70f26. 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/DEG441790816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7091f7a993875ffe9ec21543b9a98a2ddd5adbdfa2bae619135459c16c4b00c3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEG441790817.
Contact Us: Matthew Herbert's Alien Mixes
Contact Us - Matthew Herbert's Alien Mixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4152d5d3e9dc730e8df900227107a2bea427e1be00cc984d8f7e8f64a48cc9dc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEG441890938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304ee7f8faac6b96eed49d32faf7e33ab66cec26ecacf6dcaa712c2eb9b1cf24. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEG441890939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e05c0fb6ff0d443b06fdbb6b351e1f1b6c862c3c7ec4cc497b11a5b5d4572ae. 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/DEAE62200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88edb0a5391fc18d5ef3640bdb1dda40577526365b3ca0f8199e30dadba09c2a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEAE62200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895a81d43e32be6402a72ccf4cddf7680b861d539cc051009ed83a62cf15a540. 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/DEAE62200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073133987409eb55a173850661881023ac376503a6773336b51afa866df0277a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DEAE62200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2636b07c79ae45c8371f5b701137d9dfa704a5176db25a634bbc1899c69d99b9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEAE62200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1cc5fac5634fe119db20371c82ad860daad9e69a3f1f2d31e93378d2cbb27e. 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/DEAE62200028.