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 0x117f075cad438d6fb58d53c1132f52c72a07b826386489a1980a442dda22ebcd. 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/a6862f8d-e5c8-4ee7-8a7c-9ed82107d6f7.json and https://artists.proofprofile.net/proofs/artist/a6862f8d-e5c8-4ee7-8a7c-9ed82107d6f7.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 0x218795c8c05a0bafdbe9e43c9ef46c1538b3ee5d252097bc7ef0ba6aaa6d68f8. 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/GBLFP1599342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d706c4da9c9216598c240246fc3f1ba5cc1231bc2f320d3eda44e8dc3bd050. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBLFP1599343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690d9e7d60af29618964a5f52ad367a43ddfefa113249de56ad3088da09a3a25. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:33Z), 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/GBLFP1599348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e18b1b87336e0c353eaf10c6fbb96f941c27afe8bc515907602fb458e1487ac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBLFP1599320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f58085fdde58b9b6e29940b974db1501221f878f8af25b5340c6e4f1ef036be. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:56:07Z), 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/GBLFP0204232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbbd144c40bf908dbb7b0c231409f28dd204dd282ac2a0e9a11e6b4a5ed770a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBLFP0204234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca17baf2282103c5e6dc855d95c36214038a2ff9019a4b0d50053e7a8eb68fe. 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/GBLFP0204235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c597d33250604f8c1d9fda35b61b915342a0d00339b941179db2b6e9ecb9d7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLFP0204236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a92e0513b700240e77b9dccf6e383515eda98f150b3262be066c8d6f6c034c4. 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/GBLFP0204237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a13295ef5c56a2b7fd1c32e36348f05a98fb84fc09152fe13adfe50df79e538. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLFP1609952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d545b39611ed4c1aa05ed38e76649f88e8d55b5bed7f886682e948793f5e76. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:51:12Z), 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/GBLFP1609953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051eaa9c44edfdeaf66fb33a78b03115749d08a218d7e5e75e3e5ab8d7101d55. 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/GBLFP1609955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602ad85c743b2e3eb95bb05da5f9b8de15c38499d5f83e8ae22f8295df1fb689. 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/GBLFP1609957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c198a9288c9941456609ee756d5fcf950ab5913151d5a6684ffcdcc8b6660e5. 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/GBLFP1609958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd07b28f6205a9e1b0c2dd3e9ddb2dfe3ac97cb0f230b8c7d9a5f3876f0bb2c9. 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/GBLFP1609963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe60edf7024aff313b129b8d1b6b2e7fb3e9c115a038dd95de165242eedfc4aa. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:55Z), 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/GBLFP1609964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aafc45a09a2c2c73feb32c6d714495ecdcf62e6d462f87b9340eb4bb4931a38. 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/GBLFP1609965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4215401c16ebe1fdb7214063f888c4c506e47395df10b08fba48bd690d275e. 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/GBLFP1609966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e60e9ac183f2cd64b5b3bcaa850471783e41afd0665c85be71569675917b6c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBLFP1609968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065eb91c27a48b1dd0aef5e4b64286722555d5574ec50928e2adb49a24454f8b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/UK93X1901001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeafbccbc69c1ed3f5184b8b1066d799e646dd225ec78445b4b0f2588ad92c11. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/UK93X1900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ad8507f1427a18cec8a37551099b9cc3708f833964100a9a803f68d1ae76db. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UK93X1900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c1c657b6d838f431c2dd8e29d93c6707912220c604e5575fd479264a043333. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:43:05Z), 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/UK93X1900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf009ac77c6bb97a47e083f2d08956eb3c733744a0247b5c410de0fe21c5095c1. 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/UK93X1900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f5c81be45315be2202847244d04ec6f013f503e4aaee3e0bc795804d198c78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:58:19Z), 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/UK93X1900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00fa63b82e564d41410603e54a3cd488f9993dd294cddb372dcad21335e7d8a. 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/GBLFP2008679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8f9aaf719583042aa44be179b60d85fb7d9d1e03fedc9fbe614401a332a818. 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/GBLFP2078897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0be3956108c428b6de1bbdd2ba0497bbb2ff7e4006f41477e7eeb3f17d2bc9. 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/GBLFP2078922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758fc4f7e613299d11df8ed491fc8ec4feae996bbda02f6de6f66e31e9fd465b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBLFP2078911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68f59ca964ab57ccd8ef50a1b579d50fde3606a434265bce5c83c0a788113ac. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBLFP2078909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e558bb3d9da79d8926935f70b9067da5f01eba0ad4c0d48d7b0ad0c6d3a554. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:40Z), 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/GBLFP2078899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed18346be8302ab1e3a2ae235071602df0b0ec8d2238978dd39fe181a38f929d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:07Z), 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/GBLFP2078902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d01f0ff6217cfdcaa806e0399bf36651636a0e49bc393938c1b5b3157af9a09. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLFP2078894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6742f236771ca4213deb64aaa4474c48b99cb68775c0a28b7c518e0509786e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:06:33Z), 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/GBLFP2078889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f64e925b4579b9c152e22c0605fed5396484070b56e770c4c48a03738c7a8f. 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/GBLFP2078879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca8a1c51ee19a3b63876e4e5c6fe0ffb306e8d7a1988d5dee0db94988c110f4. 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/GBLFP2078912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9077a3b90e04b668fb00a24e3af1fd1d5612c69eac4c8c504cd64808ff0129ba. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:40Z), 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/GBLFP2078916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8b5fa8575dca5a4e6ed153e451f3b8e06d2a8630728a9c5ecec88a6940dde4. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBLFP2078920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6802cb58f2048c807c938db9a1fc12e97f62880023833d114dd581ac96564b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBLFP1974304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39cd5a3c7b2a99197d498db214db26b2170ce8e6116c99b4233e8138789a89d. 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/GBLFP2353642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de87fca42c13fd6963fcd5f5a2e984845ca2c4a77971bc7d6e88ac488d52468. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFZ62416620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa3727b29d4629d9643adaf4d55a4bd79fa0b3a22692260ac63b61f10ad9cde. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6P2478995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f425a77c56337abeddd6843f085dfe55706caabfb61f2ccde7cf1540cd68802. 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/QZK6P2478996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49240e337046f4d36259bf5445f489bb827673c98d1874442874ec6783d3cb75. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:06:55Z), 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/QZK6P2478997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71943aa3f68015dc0cb518d53787f60ff2ef0d3a8a53bc9436309431838d45fb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6P2478998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86334c343ce0378bf465a6b22a103f1a4840e27d5ae789112b495cc5678b0052. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZK6P2478999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002c82b75b6349a56c756bc96129088f9adcd5c981338c541a089c08de842790. 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/QZK6P2479000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca442eabc62c4d4ea292f03626fe08d3af7ea7eb8ba7f7f2a9f2b2dea93b7c5d. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:26:02Z), 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/QZK6P2479001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d6d102267ebc413d12ca555bea3cfdab98bcfa734848898adf93ecedb69b77. 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/QZK6P2479002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bd79194f73cae05d61db348132be5b14c746d539f836eba6569bc539a5ea99. 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/QZK6P2479003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8567bbc9a6a30d9e185a7ab3a6a0ede11ea4698cabf3fbc54b359567a68d2f8. 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/QZK6P2479004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b3ebdcb48ce5714c9705ebbfe360ac592569f583ce20c9f92dd214752cf4ec. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:36:08Z), 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/QZK6P2479005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10928d82b33dfd7d4db67126eba46d6512c86e76602a5693d5f8465db16bb5f1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:04:58Z), 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/QZK6P2479008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188fc3eb50396472e0ac0378f9da83058cb6036c9e90f4bd8f4cd3e6dd1cc2a0. 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/QZK6P2479009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4774096f15549eefb44e866d96fcb7ab4f122a128e5727db8a1f6e616c6423a. 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/QZK6P2479011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fbd3ff3c3697a529f65964888574dc817592f80703bcab0f98eda4d9531209. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFU2491410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17647fed5b810c4cf6bc449b6a91408bd126e2edf9f5c6b836cab7c08968703. 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/QZES92547297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe580509bebebaf3a6f06323f141e0c160605ed2fd0cce42364685f185cdf4e07. 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/QZES92547299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cd6f6fdb24da4e8570d4c6aa2f1e471a9b64cfbba0da7925efae834100e31f. 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/QZES92514637.
Take It All (feat. Avelino & Mic Righteous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec45325aa4e33503a4d493603fc3c8dfaa10ac8385c71ad63d46d651e695ce. 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/UK93X1700038.
Dub on the Track (feat. Mic Righteous, Dot Rotten & Ghetts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b0cb70bb2b03431e972244f245acf4034016f9ba0e04c9d6666fa9bb83b2cf. 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/GBHMU1100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e8e63678eb8aa21042c2d6ff4565122ae01b01d651859e5d66a2bd12ab8389. 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/GX3Q92148907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48884619a5a50a1de817a9175e5a35fd995fa5a28ef1343c3bc609dacc7c1d11. 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/GB8KE1959756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b1cb43c8302ffe608284870f5b08da77fa1df0bc6140af2f89e281b1238569. 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/FRX452146130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a451eb162cbdeddd9ee0224fb9205f712dc92a4d571a31b4001ebb5436de33f. 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/QT3EY2428045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc16c23585adf37bb63231678c0fa7b83012d936f710a4f23b62e51b24797927. 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/BGA471400953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcdd45ef57ef6f848db5047afcb6652f425333a8f6c9e7514c846f074fb1676. 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/GBUM71303771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85951878e5cab68cc00f902ac41cb2fca41b266eff432f37e1c1a3d0585cb513. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BGA471400639.
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