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 0x32d1865ed938f1af7439d856241f701f36087dd8152329fef53d5e6b695edfa7. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5db90da1-b3d3-4847-bbfa-e0284e5425ff.json and https://artists.proofprofile.net/proofs/artist/5db90da1-b3d3-4847-bbfa-e0284e5425ff.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 0xe3d33a76da3a89e85ca18998617d6e945a05b4f0664ecdbad952758a4aaac37e. 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/DK9N61800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1c9e9a1a007fab18710f0d02127d74882e798152c150fc550eb74d8a52fd3a. 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/DK9N61500906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714240bddbf8392500de0a87317cad1ee9154401813fc51f03a5753023d7bcbb. 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/DK9N61500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb63179d08607d4ec83ecc4f6b6484e7415af7cc3b0f7776b9d6f6072ba13636. 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/DK9N61500602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601361e8c1e06844985258266b8502429dab2484a8c148e8d1313321efa035c9. 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/DK9N61500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4e79998031bf27d8ba585568bdf1cce8c57472549283c3faf5051658dc41a. 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/DK9N61500603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60360935830c20b99ff5566531145c27f8a52db2df90caeb141f9f326846b63b. 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/DK9N61500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdc86ab0cdf7030a1f8fe0852ed3d2c80dbc3cf06897dad7947b044b4a54880. 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/DK9N61500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580ac4b132ea4dddb9aaf4a93c14db4a67ed9402ea886cfc12ebed0360ad1f2c. 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/DK9N61500809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56162459c5d7019f4cdd2bdb8eac7ccaad60294b162c977ae952c0804999fb04. 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/DK9N61500407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e8c4257be4f5934c4bc64e4a3d454042c219863cc2b5747b6cf5dbfd81b8c2. 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/DK9N61500905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c580d23d6afd56b9109b7c46510357d7c6faf6f262ee1323b59ff13acdf8158. 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/DK9N61500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90a6601949b663431851bbb5cd19fe190f431a8d02222477a05a82df638fdc3. 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/DK9N61500804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c596c6e6b5fbc5613e29b9fd4e08e8a121f84c141cf64876144c8bf0b84c86. 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/DK9N61500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b3e96ad557c154c979fddf7bff5400467887d9dbd96950f79604969bd2135. 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/DK9N61500904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16b5d0314eee1d577c8228567d9bdc81783c9fba149cf1a25356a6614a02e2e. 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/DK9N61501109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bafbdb2455d57e9c9e900e9b61db673e6b994e17a0647680a68d69c5edc388. 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/DK9N61500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd28f7c3d00ea7d85523dd4954c971138efd8089dcdbc59b5ae9a22921681bf. 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/DK9N61500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5c7ba13650cd37f518486defeed9b7cd750411d901644a2c3be2e29f878dab. 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/DK9N61500606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00792e64f1489498bcf5b898b5cf15bf3624a8656e53de807a1a7616a513e8dc. 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/DK9N61500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714240bddbf8392500de0a87317cad1ee9154401813fc51f03a5753023d7bcbb. 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/DK9N61500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1c9e9a1a007fab18710f0d02127d74882e798152c150fc550eb74d8a52fd3a. 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/DK9N61500906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bafbdb2455d57e9c9e900e9b61db673e6b994e17a0647680a68d69c5edc388. 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/DK9N61500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c580d23d6afd56b9109b7c46510357d7c6faf6f262ee1323b59ff13acdf8158. 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/DK9N61500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714240bddbf8392500de0a87317cad1ee9154401813fc51f03a5753023d7bcbb. 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/DK9N61500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb63179d08607d4ec83ecc4f6b6484e7415af7cc3b0f7776b9d6f6072ba13636. 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/DK9N61500602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4e79998031bf27d8ba585568bdf1cce8c57472549283c3faf5051658dc41a. 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/DK9N61500603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38cb13b09174eae3dfb242c0c1cccac4d7199a25038f13a86930422d619016f. 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/DK9N61500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601361e8c1e06844985258266b8502429dab2484a8c148e8d1313321efa035c9. 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/DK9N61500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60360935830c20b99ff5566531145c27f8a52db2df90caeb141f9f326846b63b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK9N61500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdc86ab0cdf7030a1f8fe0852ed3d2c80dbc3cf06897dad7947b044b4a54880. 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/DK9N61500503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaddfe72ec15973ca22baf948bd455e43635f172f50268128e5a88bc036ad42c. 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/DK9N61500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19dfdf92bdd8182ec88474c715dc1d5a42babacda11a65b2149900175397a04. 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/DK9N61500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18adfa422c162768150161d390eab5ab8876d594968098d0efa4b29161114d51. 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/DK9N61500510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60bde46ce74a9ccef5a803bf589a02a017a215a7551464536f09471d9edfcf8. 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/DK9N61500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc198dc085e3576031aa616aac42403c57cc22cb430d729dcfbed7d76bb9b5e83. 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/DK9N61500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00792e64f1489498bcf5b898b5cf15bf3624a8656e53de807a1a7616a513e8dc. 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/DK9N61500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdde04de7e5fd5a119d4800d33e93da742ce2da3d939303e5492750525d153a9. 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/DK9N61500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c596c6e6b5fbc5613e29b9fd4e08e8a121f84c141cf64876144c8bf0b84c86. 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/DK9N61500210.
Nu Begynder Din Dag (Du ka' tro det bli'r fedt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c9cf1a3ef8fef6cb3a35ac736670c58bb0e29cd61f99af766a909db5d04cc5. 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/DK9N62200201.