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 0xf8da919e1fb3560582464f4e20adc039332fecbaf9761ce0492e74d80bc132a8. 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/24265664-733c-4177-9f73-81ff345c6fa8.json and https://artists.proofprofile.net/proofs/artist/24265664-733c-4177-9f73-81ff345c6fa8.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 0xc9714fee359d4a322f468947669c9a19228839e740d0704c006439ca22356f2c. 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/GBQXF0530052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383713b0eed6b962773d434ad987d57159ff7780695209017ee2192c09a69fc6. 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/NOESZ0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9a4f00af7f9ac3fe75793e68565e48e2b69cf0137c41090e20d8e43ca60c9e. 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/GBNGJ0700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd668b5ab690d75621471753511b5420f40afaa06b8b547677f1ad8a64c6b47f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBNGJ0800022.
Silver Spaceman / Some Other Funk - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c86881fdf4aff9044d14ec36be7ec37bca5bea795557241d15da4d55dd6df. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBNGJ0900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57272455282cd7599c82f80a1955d8295bef3eee8f773567d33918a1a5e2f773. 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/GBNGJ0900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c86881fdf4aff9044d14ec36be7ec37bca5bea795557241d15da4d55dd6df. 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/GBNGJ0900025.
Knock You Down - Single (Eskmo, Datsik & Excision Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00657f1cbd7cb178358c656ca136355d26c7cf9cf3a3f8e18a13532e6b64bf78. 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/GBNGJ0900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2288e986f752a0a756b0438d8c82a15ff05e3f91e488ed03c777aa4890324e7d. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBNGJ0900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654080f35af448cc986ff2eafb55a797493244c6490c842e8b540b7e24f6147f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBNGJ0900036.
Knock You Down (Eskmo Remix) / Nowhere To Run (Datsik & Excision Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18cb2c402c8be45b9280d6f41a7c0d2e468c9942bfeaaf48ebd714e58d6ec0e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBNGJ1100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32530ba2482177bb0ea0ae828b7e374147e62066411b19fef8e2f9ae3935d341. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:23Z), 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/GBNGJ1200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a6073dba419bd63dcd8bfd89c87a923cbd679137ebd1f8d4ba7e98109eb912. 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/GBNGJ1200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d596230bbc2418b9b4b9e3a228add7d6262df7aac0e9c50982071bacd8974af. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USQY51530080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe167d3ac99c2051752a0e7660ad43b60c019e8d67c0d572c9ae40e95556dd619. 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/USQY51530081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d875051b8156735c9e9a4a141d9851bbd5aa01d3d5f7ac1d4a5f999729d0d3. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/USQY51530082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce19c5495b2c6e40b82a1e0e5ab102225439dc685a553d3945e054e543e5760d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USQY51530086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda786d2eb4f8c718ab3dbc854a7f9a0c42eb676b3f778829608a666fc5d9c803. 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/USQY51530088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe8c7e4828b923762d74962438dd7db8418edf2f4aff39f709f8de35a45d1a2. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USQY51530089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95961647292fd752262369b4b9d26aadefa216da38a2893191cb2b230d2b41. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USQY51530092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5000fd4a7477e54830fb72942d816bb2337e7d3867b118ac1450a4758f701748. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBKPL2010180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78e75f0e38142aabb99d05809800e2e62785711c3a6cbf62dca422b2457a0b3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKPL2010182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661ddbae768c2eb05ad9e245c25c1af1d006466696d0cece8bac2c76b8305ac. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/GBTDG1302457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e19101052bf3308c268f814bff11b8dbe1e1beae0913dc99b3197a33512bbe. 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/GBTDG1302459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d673d9cbc7fb4082fe6455010d7a070a01e941a0fa3ab0996defa5a0e0c8ebd. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBTDG1302458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc7dd4b7825baa74a8b6603a2c0f1d1acc5ea63a44534e62229f00aa45d0019. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBTDG1302462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa788cacd1521095e979d7b309933320420fbe97a178275914bb85a42d2aa495. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GB2LD2410372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cde6587ce71167cea22c2be6325f0a2b672d4f7a58445e1ef718bab8c9f671. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:12:30Z), 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/GB2LD2410439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a6fce8f66da32030419639942f7587f875219d3ff4688d76bfe90b0c3aef9e. 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/GB2LD2410390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c1be22aaedf77a0496dd6735ab948013be2da9e359afb117027e3208a7419. 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/GB2LD2410426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c561f6dbf59bba9ece830930f087a92e1dccfca7a00e091feb383ede239a634. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GB2LD2410440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d7a044bd8aadd8de32d5e68671a365a0870018280fcf3e46debb64c067c34e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLCK40700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cae6d988e773599ae54b3d528a67a63dcd4590c0c13b2d4beb561548fae06f1. 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/GBYEY0900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf325cda2f7030dda8ff2c99744b4cc58748e80a4c37e0679b7ca551739dc5b45. 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/GBCEJ1500444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f108b2a4d7e6262225a24fe167785fb5e9e4038396264a6acbc79e150ca618b. 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/QM4TX2504151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7339ab27c75677e2de631babf881f88bbfa83cbf835cbb6177e68daaa2a28a73. 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/GBPWR1400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961650dff5bf123df79b963126aaebf22cb6b4ee44cff2c80fe01a683c345ea. 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/GBPWR0600060.
Shogun Audio Presents: The Classics (2004-2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961650dff5bf123df79b963126aaebf22cb6b4ee44cff2c80fe01a683c345ea. 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/GBPWR0600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7339ab27c75677e2de631babf881f88bbfa83cbf835cbb6177e68daaa2a28a73. 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/GBPWR1400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7a84f0f50b456cd09b6301c611bd713279e48b5cb4a70eda5df2d2d12a144f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBQXF0530007.
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