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 0xc39b74d3ce56b1c53b2ce6d17778a416270662c4fb53110793e7116ad2598f72. 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/dcde8af7-e3d1-4f52-bb26-7cb382584ca9.json and https://artists.proofprofile.net/proofs/artist/dcde8af7-e3d1-4f52-bb26-7cb382584ca9.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 0x1f4ce0eb32066e6e419fac6212d932585f40b948ce7c5345f35eef205d1a579a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:00:46Z), 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/US4LK0701811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c5d19e02f9afe81ab5d32e9e6393c42a2c69f627823ab55110f982fc291766. 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/US4LK1002041.
Chicago Days, Detroit Nights The Remixes Part 1
Chicago Days, Detroit Nights The Remixes Part 2
48 V / Shaded In Mars (incl. Truncate & Jeroen Search Remixes) - EP
VA - 15 Years Nordstern Mixed By Shlomi Aber
48V / Shaded In Mars (incl. Truncate & Jeroen Search Remixes)
48 V / Shaded In Mars (incl. Truncate & Jeroen Search Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4138ca8f36231019648f20b5b05baada67cbd3329188560072acacdc3e24ece. 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/DEAE61900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7c53a90757fb6ba9c847ab8f2bd31c6ca10b1927431393a5e51ea4d525437c. 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/ITTQF1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcddf252706f89c0cc0d3f7121403d10050256fc461962da32a9577f442e616e. 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/DEBE72200640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b81c774b5a3f4dba6d033742824edd596fd839d40ac5202955423453ce936e6. 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/IL4092309001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d647e66bfb223f4cef41fff52a8bc69c6e6924af11eaf36a18d8152459eb843. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/IL4092309003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c3f4fa28ebfafc9ca66446aa397e6c1ed2800ffb1794f1959340b7564e67cf. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:52Z), 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/IL4092309303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838bf0a5a538f926083c995e02d638f7f1c6dd0752dc9e301783d24b2611f77c. 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/IL4092402501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc105d74d73b4b374e06fed75fe827674d5d3d61b67ad6edb61df6c7b3c3b075f. 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/DEBE72500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe71327e2ae8e129cf76ddd855fc4425fdd794cc6cb8c3abd0d70c546271c03. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:22:14Z), 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/DEBE72500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc969427d7d4bcabad9dc3dee0cf1a56e7b260aaf504b1b4379863e90c6c2f135. 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/DEQ200600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc29859549933491e9bdf3c595ca02dacb2021e9ae674eab49da5540e0ab95f. 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/DEQ200600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49edeabdbcead0ff3fe5cfda4a86a6a2ae5acba4905e62b82970c722443c2d31. 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/DETB31800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce73236031b607475c074a10e4178f5d5718614a92f3d9380003ce4b8c2beaf. 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/DEHE41200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08e236786914b5f21cad5e6ed7798dc75e70ca784f091478acb6d4bfbf35fa1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEQ200700218.
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 0x6cbf4bd35d718abd102b5a5407d96927999aaa466f33da5c04813ab08d654303. 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/DESR41800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d5f9c9876db1600a375c3d63637388a1de510ad3fa5be3209f2ff796b81a85. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLCK42236619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edbff48f110bc7273d19259819a6658690342f92078b33f599027e42237b357. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR5R00900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7eaecd1a96e1aace0b99ed6946a548d93b58fd2f5ee1fa239ddd4ba82b49b3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR4GL1066807.