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 0x7ff94770e31a0468358646f33cce1563caf816cc6ad5e40effd7d841a77992fc. 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/03006dad-9b1a-46bb-a02a-95c8dbfa55c3.json and https://artists.proofprofile.net/proofs/artist/03006dad-9b1a-46bb-a02a-95c8dbfa55c3.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 0x05a2c6e6d344f60452295b662ffce5e6c279cbdde32aa0571c93f6b320f550ef. 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/SEYKU0000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883eee3a169a441947956256535b47961e229ae9cd5a8c9bc5a0b3923d78c41. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SEYKU0000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4603a148092c502a16a72940e85b182da922f222e4b37b8bad4cceb088d248b. 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/SEYKU1000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1591716c0d5bfb51c420ec674168cd75090259c459b5872fecaa445cc29aa2db. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEYKU2400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1bb07eae98c1721125182e06ab778cb9b5d2ae1a464995f68f1569ac2e25fc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SEYKU1200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d73e220458da61458d0b46f6522a904e4d10d7ac861c3bc1618eb249832a340. 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/SEYKU1000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf402f02a7b265bb6d32784cdb9771596ae832cc0389f0da6da2ce788d9b23aea. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SEYKU1300402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2730ac7d8a944aa7e91ef530a390021de16b93c88a26dbd2e6174aa37f7e21c2. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/SEYKU1300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4c3efadbad4b7f8631b601b33f1211f19875a2b036c497b04fc44eece99cca. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEYKU0000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883eee3a169a441947956256535b47961e229ae9cd5a8c9bc5a0b3923d78c41. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/SEYKU0000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf841afddcf3c1310c69423cc30eb3224bd133f1e41fc0351adf162c771307f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SEYKU0000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea52e5a42f83a7aa02e6fff4e55138c0b7c160ccc53cb6af281d0488253945d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SEYKU0000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906c3aa7b0ce01f70627962b73bede01d85870bcc8832e29f65201dac492499b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/SEYKU0000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64fe76f84047c5ed2b7c91b692485d150fedf08a4cccc34cb766b33726e81dc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SEYKU0000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38c71916b5e0f8ee26e97990819737a127a505b72b2e666786acf03e8fd4be7. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SEYKU0000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1348e106b1c8a5876b57ec01981f323e68de8c735e78c525a7a9241386e8b15. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SEYKU1000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b1de4b267f8bd67da747a689630a7ddad481ddfc8fd37e8af8b4827b65dab8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SEYKU1000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc0baa2245e4abc13f605b3c01329eaa112d50ef9c32f802c6c56f8bd89ae73. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/SEYKU1000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb510284d664b5c52ca0155d9236580fc622d8275fafd1178992899a5c2a4fab6. 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/SEYKU1000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032b6ce2b145a1089ec45cc0939bc3fbc0c2f63b5c39bbd5eaab3399157f8d51. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEYKU1000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d90c1f453d20e330b54427580361c4edbdb4f95b4ba666050eb0aed4fabca5. 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/SEYKU1000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec26326fd921b6b1be26efdae82bc6949513b8054812c24d40ac28552dfb6aeb. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/SEYKU1000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd2282d1af65d90ccb1f676266073ea52c0e44c2826b770181a9eacceea971. 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/SEYKU1000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fe11fc33d9cceece0b48ede2ee5237572d54490bb1fd38aec009235735bc37. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEYKU1000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aadb9aa6ba0d550608e2c1acab4ad2a14c07bb996c0cf76c25c2de0b99fe05. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYKU1000501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d84a304037649ecad60424b4f9642e55d4520f344f0cb8547ec7571bcdb3b29. 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/SEYKU1000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a932f8478389a2b14b464749c7b9edb52a2daad0e840a3f754909284f595fe8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SEYKU1000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a34e078a236071f9f310a6d13006845d1f24bd62e4cd1596db4bbb3865e07. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SEYKU1000507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d42908d937b0243de7358d9e4d54c85b5932a52de2be116fa006bc840880a5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SEYKU1000508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16552e0838ee909e1ba7fbf63ef7b0bfa8fc6e815f8988ba456937c8204b4c9d. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SEYKU1000509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df69cdc48cbc369588670d1b71a38b25f22f804f771981a3ab3dc6c66bc39b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEYKU0300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06b823be6fb3f0a8a516449db2b5f3eaab1aec4d184147a7b20232e8cc35865. 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/SEYKU0300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cee5a5bb41171b18f2c625c2ed4e2f136b7f730ccefd434a28919745cc75147. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SEYKU0300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d279a70b3a078fc9193edfb6c7e1d78ff65417dd99ee6f15f755f472dd8a2f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/SEYKU0300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2730ac7d8a944aa7e91ef530a390021de16b93c88a26dbd2e6174aa37f7e21c2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SEYKU1300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3ff093fbec720dc338313d6a7716a9482ab8f061f056198c70bbe88a5e518b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/SEYKU1200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1bb07eae98c1721125182e06ab778cb9b5d2ae1a464995f68f1569ac2e25fc. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/SEYKU1200103.
HEL Biggest Spotify Stream Tracks…plus a New One
Hel Biggest Spotify Stream Tracks…plus a New One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c183d6051705af83c1fec5c28c52e91ef4bd4447e951ea92bec50a9aff13c1. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SEYKU1501502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87121ed459bf4ec43d333d019b0e633612d1cf0c45f250b212a628a27853cc0a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/SEYKU1501505.