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 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 0xae849461d46ff75b4184da29c3fa6df76c176a837b142b0f8ae49ac5fc849e61. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5700c28c-945b-4393-937f-76095908129f.json and https://artists.proofprofile.net/proofs/artist/5700c28c-945b-4393-937f-76095908129f.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 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 0xa5bd04d64f3b3f45e5a35de0c7dcebc6d84d17bc73b58774d84aafdc6a3cb329. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIFMF1221237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cbc2868aa1b624d4748e21426f66216d54ea105580bd199b51b5991a765b1. 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/FIFMF1221239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7714aea50f0efe2875428d4f8ed847bb91beb1349904e65a4793faaf327d1a6e. 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/FIFMF1221240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3315b704955568b2db0a71d852736d8aa2c9e3bd94b4b4d269796bec00ffe5dc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FIFMF1221241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae604505fdc39c10cfe6d95ecccf02335c9f37fc0947442c663991f5dbc7840e. 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/FIFMF1221242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe44ac05a79676f2e5a7bdedab276642b379145b1240cec2fa0f950d454792db. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FIFMF1221243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9868745016057ab74c0f75847001e289d49ab82daf928b76402362a6eb6f6ada. Chain 2 (Bitcoin): anchored in block 957210 (2026-07-08T18:28:05Z), 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/FIFMF1221244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf206f50f2657a4a1d3bff9b03c9d0697fc7191c040460d12cbf43e29a0a871e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FIFMF1221245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062714ad469f7138118f3e013b6df7fc93768cfeed67e4fd75a47be3e037faca. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FIFMF1220016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612880c91117257dd6be1547f2dedbaea80aa0f175f30c92cbe3f7f51037ef3a. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/FIFMF1221249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a46370d4859a86f2c862b2b42ebe4cead4db7e728759fa0be60447c7f20536. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FIFMF1221251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d169d9bdaf1c6468472f5711a01f54b3f187f86921510d70fc3d4081bccb18. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FIFMF1221252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090d8b306e9e4678105753a13be8f0d1d5435e01f63b7543136b5c1af810728e. 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/FIFMF1221253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4322c3e8e7fda5feb39da50352684305706e501962134531309ee1a431867de. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FIFMF1221254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0115f79c76997fbf9ebff4254d6fa950e484e4effb56c0c1108fb6d8bad487. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FIFMF1221256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd668ef8bae3fb295d41a320739e42d029e9ca9194b1077840557869624ae49b2. 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/FIFMF1221257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd698f4580c3083b2254bde632853907393ac7f6e2edbb74c28c9c7c8c17cf3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FIFMF1221258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f5433ef690211320671037799870350918b1cba80dcf0d5735edab1d499dab. 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/FIWMA0300531.
The Lion King: Special Edition Original Soundtrack (Finnish Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acaa5f526cf674d66ae3c20f982780cf627e4caacddb0bda3ba756d5d27b418. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10524329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aaac5fe2ce042e30f376c084579079b93ce4eda6267c142b045170f8beec3f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10524330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e60ec8b68a66b1757f7fb2dbae83412d805aed5fcad3358586de4d06298afde. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10524331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddabf23872cef5e70da5d8f3831a57fcf3e9288722b958f684420d5b5a08a9b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD10524332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dc782851bfacdd9d3deec7b4868d3eef26851d25463dccc7ce865ba0f1f1c3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10524333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235c8ade3987f6ad3c4d0392c7e6204a611e208bca62fa590dbac66b0b553ee4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USWD10524335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0dfeaf89feb193159996c645b5283f0b346ba4a2747e12116cfc9f1dd9758. 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/USWD10220755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eefb6dd6def0d387b78ba51319facc3dbccf1d937e24f53154fc52941dbb5f2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USWD10220764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c003c1aad8ab6f546fb901853b1e3aa119bccdd3b7ed84a410d9902960c1bd4. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USWD10220765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d728a04b2f63bd7d1d89790524c33fb3690cd1c8b2e05ebc2b2de371039207. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD10220756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742af4249facfd532e29a931fce7b9da59bc60e3de07a5c5439cfedc6ee291a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD10220757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960626bdf242335fcb7221f3c27b297bb7942d64a74910471eda7ef15273fa82. 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/USWD10220758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088353ba66a3072b9d2269a2eec189625a40d1bcc09aea480eabddaf47ae0ab8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USWD10321343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43942539551077f7b13fb7d3561d622b10fe95f1dcdcd63a2422854a4db7cb6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWD10321489.
Jag skall måla hela världen, lilla mamma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46180518c140fe6780bc07c4aee5be812f6f03687db7512a95d73036814e0b90. 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/FIFMF1100053.