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 0x0e1cd92dd7964221cbe04dedffd2d428a4797758b26ce4e8b4ee519acb0c0670. 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/1e4714d2-65d2-45f1-8e69-52db27561d34.json and https://artists.proofprofile.net/proofs/artist/1e4714d2-65d2-45f1-8e69-52db27561d34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dead by Daylight (Original Game Soundtrack)
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 0x676c5e7b653178ce5804f4beea46b27854f5aea0541f7ad93771286132b6500f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/CAA501942905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6945060252bb77b6c6c18a2d93d1ae441f50cfb4b7d5ec02e1261ae14e5ca2. 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/CAA501942906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c519efbceda4a55909785d0a15dc9579d10122e8d97a673e6032bf7d604d16c. 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/CAA501942907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c271c338c790762f01cfe2c6329521dc120a970d9242f682d9a16ecd620f01f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:22Z), 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/CAA501942908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8e0295a62cc7a8ebd93b3ed391fb5567e7b0e5f4ead4a7b910b2b7e01e4e79. 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/CAA501942909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e16cc9dd05be2f885270012d40636ffaef122513f2c06ec52c965cd9aed604. 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/CAA501942911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b36a37f6484766b8e083442956dea1860e34fea52489108c8dde5b490085dc. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/CAA501942912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d54906f24d78cc28cf193fe7b9b592c14f7fd2a59dbb41678bd17736f41257e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CAA501942913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1baf9732bfa48bd86272507ca68323cbfd24df489406a991351af0c0ba846c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/CAA501942914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937db7a76aa8628c83e72fa4f1557eaa3b7face755577ee80d143f994d19ab4c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CAA501942915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cec988526983758834c0e9beda4cbecf0805b84407552094f01e4b38fc03ec. 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/CAA501942916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8648d3518e5fb8cd6378c145c0b160c5d88b960e94cc0840f8a5e8c61cc3fb55. 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/CAA501942917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614d86631a86dbf02c069e705b205f370804162cc82d97bb8edf8bd3849dc740. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:05:05Z), 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/CAA501942919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d07c1038cac69edd8d0c8e0980dc6734ca3915b84af4cf45ddfd5a68acb0b8. 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/CAA501942921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38f33edd4f16cf661fdafa047ca8ec488306c6edf9ff2f17029282a2f719be1. 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/CAA501942922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffcb87df6bbb12a9ad07b79b124c4620034772112c8c87b23d0f9297c2fe0b3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CAA501942923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c69c3fb896af492c887c05ebb56e0fd2f8feefb30c9c9cdcc23e560a38c07. 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/CAA501942924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994865331ad01bd1864bfeb645642845fa8e8f810b0e2c67c657852d9b3384e4. 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/CAA501942927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a1d514a3c2522d1302b7b60d5eb7b5736fa0a46a05f9f0dab005b34446e446. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:54:41Z), 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/CAA501942928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be9956326adcac9cf205f0e4d066e3fcda51687bc31c259bd7fee9af5488c3f. 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/CAA501942930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceed9b9d2e5398f9811566ec1835fb7a0d15f8bc1726e01143cdae7a058ca6e9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:51:14Z), 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/CAA501942936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f345a27a7d40fa883bb1986321def2f10f66542b9583a5b7e834e0ab3f4b3ce. 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/CAA501942938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc805a5168c0ea83405be2d3c4906c591ca9705858756a79b49a40570a0bd5a3c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/CAA501942940.
Dead by Daylight, Vol. 2 (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fc28df6505c71a5a9e102416e5ddc8a62ab3c84fd7f4c492b75a8f77d809ce. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAA502248701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc685a5bfbefb5b3798e60e56a86a47b157bbfa63763e151bb20482fc1edb4a. 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/CAA502248709.
Hooked on You - a Dead by Daylight Dating Sim (Original Game Soundtrack)
Dead by Daylight, Vol. 3 (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8642b295e1bc4acb50ae32c483b05a9715bab60ff02a8a3e7268782b1e1a74cb. 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/CAA502351412.