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 0x318cfef334ef0715efae9d8f702970dd3e6b9c9463401fc21fb009530b0c3216. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0351f041-93cb-4f87-82dc-8f7371af134c.json and https://artists.proofprofile.net/proofs/artist/0351f041-93cb-4f87-82dc-8f7371af134c.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 0x4e392d6c570327cfa492ab33f1de3997e6c50efc08f1bd7868bade28fd39649d. 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/DKRK21000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd465319fad49e7efec677ce7b0085fc2a1c9062031c020550487529830c24316. 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/DKRK21000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c20ed0d8c9e331324105b21f1e209bc140208c519246856131d528cf074e8e. 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/DKRK21000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d6f28425139ba8e7c317f22e5fa3822304c157dd624b47679e2bdaafe229f4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKRK21000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f30fe6faa67586a14c64d892d4090b6a092912af10ebc22b88ba70322ea46e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKRK21000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d7333facf75b0a51bd0e7e9cdd1f613026080fb1075973f6993c4152dafa22. 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/DKRK21000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c785c8393c4ccbada4d1783e53d3e2073778c3f06462cad4661ccf958e5be60. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DKRK21000101.
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 0x3d8fd7e5b29cf867096b0c2c1ad811f30acdef2cca6c5ffa87b3eb33b77cef6a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DKRK21000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234da2ff8239624d8081c62dc48bb6d519b6ab18eaec3bcfd683eda5ddeb3f43. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/DKRK21000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbd7ca148b89b49bbe1a17760c07c12fefc9a9f4730929a73aee382bd50b58d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DKRK21000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8d36241d2016d7ab30bacde8ca67007e4b932e7d1f398e22cbb0acea5c19c. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/DKRK21000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7da5d8415950e59891a5b9381d28824f33d466fd8c6b017ff552abbac330c1e. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DKRK21000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7be339fef310f1594a49a8d38448cd8b61af959b739091bf924d2f5d9407ba. 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/DKRK21500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120bfd00de2038a2a1326943aa08c888eae46d3c67094daabad8a8b8c71e5c19. 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/DKRK21500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ca69deb5936e253fc4905b2f1291586e3b5bf733ff64ffb9936ec93089e21. 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/DKRK21500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd924f6c8e11f3441c125c98b15344dab34bb26d77230e531eb4b50ea1ac4d. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DKRK21500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0857833d31cad1259b6d89b8d69f75460e1d342118df240a6c7cc5b165248d. 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/DKRK21500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c3316816fda78eb13d8c75755b4b06a4dbfb205ea7ef40265648b6ee005f1e. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DKRK21500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab10c2f9850a33caa3213053aec62e43dd72eb43ae50f825b9b4bd4ddc49fe29. 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/DKRK21500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba771915d088e3a102f32c1038b55ad4646007dbf34b1ea58d885e5f2b7a75. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DKRK21500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade2c9e7e2374089981039b8cf0b9406efc21afa68b2610be1d26218094f6a66. 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/DKRK21500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff766dd2e0d5263198f347ffb8205b3bd121787f4615269e29a8fa5a1d3b02cd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DKG7E2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5101d87af92f052c4ff312a983ae56e12308eb406d41becc0b3891b7912903f. 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/DKG7E2400502.
Puttin' On the Ritz (Live In Kristiansand)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad40fbd21e897d6f7ec5bc88a299fab5a017be559ba38847aa658eb66db1d670. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKG7E2400901.
Blood Moon Wolf Blues - Live In Kristiansand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce87a470f13998cc599fe3484c4726d79822a29bbc4afda3b659f041dc8f3ae5. 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/DKG7E2400903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8698a697f114418343324a6885c1c412e2db2cbec706d898ab65dc988f21ca. 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/DKG7E2400908.
Puttin' On the Ritz - Live In Kristiansand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7363e885c88f5d920be5081be02f694f0b696be8bcc60405833e12386919a598. 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/DKG7E2400902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58de5cdf32e7e09622e24497d20b37585d683d79559b0791d147a9d37fa5cc19. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DKG7E2400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c54c4e0d9d94a280dae08439e5387a016e43d2fb17754e59a04e33ffcdc7f7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DKG7E2400905.
It's Allright With Me - Live In Kristiansand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2f0fa3d617d585dec3915c6c3193333dd68819bce737ff3f7f125c568b0586. 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/DKG7E2400906.