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 0xa663b374bf98ca555a77a09a400584919c2093a341e2d90e4f07d4b223358c64. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8b715c8-cbab-41d3-a261-23361a3d6cf4.json and https://artists.proofprofile.net/proofs/artist/d8b715c8-cbab-41d3-a261-23361a3d6cf4.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 0xc3218ee9b3f045c8b9e574d1dc411967153cad1a359bf5158e52934d58211701. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QM42K2019337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf533799f802c6ce544d1b486ae1e49a800a62dace7707c62bde29566ef0ade7d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBBYB1602544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b354fdb15dee749cff7cc0e497f8f5c8e7df6872563e629eaaacafa57ffcbd. 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/GBBYB1602545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244200e15616e8fd251dbe861459ed2aa6ddf228c0d2709fd50cd9d22a890f93. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBBYB1602546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8c79a7503887aa1e4e6d1e646cc99ba68359d8778519f147b48e130391b08f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBBYB1602547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1de4fe26fd4d3993f423b457346ad63b11b04eea856fba2a5a998063e73e83. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBBYB1602548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bde152f891b3efadec437d0d76280d1f5bf00e2896047fee4b1870cd7db09fb. 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/GBBYB1602549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3e2822593433c62361eea4431dcc4ccd7e503acc5096ec7e5b156f03f0ef4f. 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/GBBYB1602550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716c75400c4108d863cfd1855ce6b4355d32132d003cb326b50d7d39bdc4b458. 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/GBBYB1602551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb19bb350d2927ff4557dfcbf1e1af4997a6f532948df925e24b4f6dde0ed27. 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/GBBYB1602552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826fb65e769079d6fbcfbe9afc524d34248a71d98cbe9defbeb461f3e38bd9d1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBBYB1602553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ecd16fb84f6d68afcd753659da071bdf8f440e576a04d5f21b65d2657913f7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBBYB1602554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe376b75b153d3c4b18247c886b0da288443b323fc384d3be1f588f4de6604aa7. 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/GBBYB1602555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ac7408f4a9e263e19dbcc272cd0b2bd3ceb09ffcf923a03de3b27a30c38f31. 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/GBBYB1602556.
A Tribe Worshipping Their Gods - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b76d0a47f6b9088c93cb08a65885916e659c0c7fe3fd447ba30cdbfc5ab10a. 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/GBBYB1602557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2aaef39acb0bf3c2b701db743083fd57d8144cea88efd058b2ae10fb2dfc79d. 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/GBBYB1602558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbada4ed0941d3c78fc9d945ecce3fde83a9a2656bb4789bc90721c0429cf73. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBBYB1602559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc9ef862ef40ef4436abf7ca3a9b4ba00aa16c42ad1aee0cc6cdbe1a229befd. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USQY50966988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8785370dd3cd65b6022b06db71cabe05fee86bf310b1dad92cb9adfbbe7aa963. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBKQU1755123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368a95bce09f85162a15fdd6d49909835e7a218771a812092401ba1fa916ca9d. 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/GBKQU1755128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ea8577365edd18c14407bb80597c917883be2616aa199fdc1675764283a039. 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/GBKQU1755130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9041babd3d333fb3a5d58042e9b132aaaf9d8bbc80c02ea59095f585da13beeb. 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/GBKQU1755131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b0b8fb0b23029031d82cf130695a10f1aace3434ad146ec0a869248920843b. 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/GBKQU1755132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3317c614c4f4f1bd5a23b2f922bc849b1aecf06ed08da57250ed6bad27d40d4. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USQY50966996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a17666efd8d21305b3ceed5e2a3c636247f03cbb039996a45d958d9ee54567. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLV61405232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8954c4fd6d5d72c8a2f80971b3f038d1c6947a4827b9741ce865f422e99150f6. 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/GBKQU1827832.