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 0x84c3efee18ef7b846a21dad833bbc2a5376dca477e361b007ea307c8157482c6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afb335d1-a73d-430c-be37-1f1dfd28f111.json and https://artists.proofprofile.net/proofs/artist/afb335d1-a73d-430c-be37-1f1dfd28f111.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 0x1104020bd34491b515eafb2983835b3aa07e984dcc6eafafbd9d18a009323ea0. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZNWR2397226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83df7f42de2a9ee84c18943b15dde5418642725078934277753828c7894c4f2b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWR2397227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20aa9d8a05f289185d0e616e2033e453a870070428ef8c2c6a4abe1284dfa668. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:42:55Z), 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/QZNWR2397228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b6f62a8f6e89014786ad13cbaaf217bdf87a11036c0e1b3190d737fdb10197. 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/QZNWR2397229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cf8458ada5fa3d0016a1eca49afeb4bc7e8e3f8835a8fe7281dde9e00a2f89. 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/QZNWR2397220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5d0b8d99431a62599445589dff2547f10ed8240ac57361afeb61385767ff47. 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/QZNWR2397221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e942756af0f1dc347cfb5d17d8bb0a4dc39e305dfb684403c071359274378ab. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWR2397222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9254f610a4c91899cac32eb8bd60b747ccf0200e7adb113575e07df91e24edba. 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/QZNWR2397223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4407aea19c1ee846e2928842b27f056bd10ca78538c82c70317b7c350ed7483. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZNWT2317845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb41752fb3037e7affe1b643e79bbe544ddc6dc480ba8b321d9df0d4dea17ca. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWR2397230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cef794430cacddfa72667f07a05a3ea475ec91255989b43445c28ce91499f7e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:18:53Z), 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/QZNWR2397231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eacd8e35c250e3672dc4706fe1bfcaffca342565516564fe2aab79a35cbe70f. 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/QZNWR2397232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cca63b54bba9055f15196be93acd369a98d7419751d58d551d15fd94ed4eb26. 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/QZNWR2397233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a98786cec1eeb3c7a1fe26bedc6823f9a25b5c3565da2ecfe21542383efcb6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:16:57Z), 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/QZNWR2397235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f13bf433ab213533720928a7523d3685337fcf0dc3c96e2fdaf02a3a7905f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZPLR2316624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b04eff0a8c1f06a7a1395ed35c1fa1f5e15c586feea4791d8dc0bcf4ad116a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAW2463863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8879c2356ed4f6ebf8c9160627a8a144e476d7056887bef1e580dff2b3a4dd1e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:07:21Z), 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/QZTAW2462103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936bca1da74cc3b22c263e9198f30304ad9a18157099d6b53685c75510335d85. 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/QZTB62459319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610db67e626ca5e5833a7d6e996599db1b5bbb2949425da7e9be7952fd8ddb00. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:17:55Z), 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/QZTB62459320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29235dc36f529f9af00e051fad81fc516a232ea0e3ed690d226d64e6aed7d55. 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/QZTB62459321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290da1728ec9c1ba58d1b1d9b04f9515d6d27c6882be2825b82c7c911ed4f4bf. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:52Z), 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/QZTB62459322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e1aecfadf7d2056d5747d21e1d1e5bd6e2e68e23ca2cb4d541e225cee6c41d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:10:57Z), 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/QZTB62459323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924db8bdb562c95e2b1ee99e0be4eaa7d036933a38931633e7cd19c94f3ff376. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:19:47Z), 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/QZTB62459324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a991efa251b07a45af1817f540956d8b46d32f34269bd8261ab1fb03efd4c57. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZTB62459325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7631efd0fccc3eb2ab4ed65af3b8175352d81a6a4cea80436f7b5e0eafc2e8c. 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/QZTB62459326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7db3272fab0b87f1d3d336ea5e42c2d83be78e2934cf111088d1dd3a624bc1d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:26:50Z), 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/QZTB62459327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eae8083c9dfc0d85d2391723cf1807520c4fd297dede126838232e79bfeec5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:57:46Z), 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/QZTB62459328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9558c3b9d3c0b80efcb217db523d346f70315dd4a2c9d9c7d466a5050a9864. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZTB62459329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6dad877069b5a9be4aee97b0a75f5c8a75dce535ad43eded6153f23f2bb1b4. 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/QZTB62459330.
Don't Know Where I'm Going - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa284eaf347c595913cf117dfffff662d0e478f3fe62b9ca55acbcff5177375bc. 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/QZTB62459331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31e93eb64b92f2a5e9937797dc934345575a294f0f285390b6843bfb53365f0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTB62459332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435deb3c1f6f1a06ef40c684f0fd53fd84987b1e854f61a4b48bcb250e7abbe7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTB62459333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d5e28943beef63efbfd71b43cbd1a42faaca59202e524c691a64a8598a2983. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTB62459334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5eef54ba7ce548fcb1e36fdb0bc9e54dad51076d7e747544e03ae97419c122. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:55:34Z), 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/QZTB62459335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8879c2356ed4f6ebf8c9160627a8a144e476d7056887bef1e580dff2b3a4dd1e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZTAW2462103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b04eff0a8c1f06a7a1395ed35c1fa1f5e15c586feea4791d8dc0bcf4ad116a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZTAW2463863.