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 0xfc84db68c51ccdb21e7eb920303d140c985e293b0d9bf808d8eaefc5953eabee. 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/d98e64ca-8b45-4a43-9cfb-c688ea1dfcb2.json and https://artists.proofprofile.net/proofs/artist/d98e64ca-8b45-4a43-9cfb-c688ea1dfcb2.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 0x30d8165432960c7e7142be7176eb5a74588a6f5d050a861261d60864776c9cff. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLR50100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601b72575e4d8b49a8fc62100145003683e63baa2b2bc1adddeba202392ca3b0. 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/USLR50100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5d1a300d4cec19e802519073a848906041e32163911fd7f6608fe5a22f5f6d. 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/USLR50100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231278c0fca946607328a83eb35fab3626bb76816d6615e3a63fed99a394b18c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USLR50100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19196f3e10b01dd2865d7e39d61d38d98f127a62155b5188cf4a3e1a8aaf246. 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/USLR50100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023c5b1fc38250a12f5017d7c88a10fbc41d5109321e0d7d4d8763f43732637f. 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/USLR50100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb768e26b544ed993c326f8954a952f55ad54507a5168e84bbc2919c126f18ab. 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/USLR50100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ea8d91528c90d13b03dd0f4fd86cc23c088edfc7edc57d1d349d5bf50f9fff. 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/USLR50100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eedb8bb26c559803b27286a0fbcb71c46d36f2f169cdaa944edb0eb74cbc93d. 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/USLR50100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83268ee83d0732e44e80fca1aa70a71676ee8d63cbd7f040f26ee586d0180c9d. 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/USLR50100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa5c1810e0b3f791353521fb37bae0043ea0af12249d46dd48a0ba5d95a2383. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/USLR50100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3effc816f37a537d2b5487d6968f59172b23460dc644907110670e151d798b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLR50100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa874f84c19df19ddea9e820cb87f2ad4bf03c84e4fe21dc2149af7b1a8c1c7f0. 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/USLR50100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6f3f68c4bdbfd0031a8d890509c44dd553408c04568984bb8fcfe1f906db67. 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/USLR50100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5ed77d6290dae10ab7aa665ca9614886cc14caf3d2d3aab4fcd0b8708c1b4d. 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/USLR50100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b33596d83da6b808e720ef46df2dfdfdb2b4a5bbcb585612294eba4f0f068d8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USLR50100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e7177fbbae4fe6a1e4d7c99830cf7c2921bc5e5878431d4dd4b57f2ce0d555. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USLR50100177.
Promote Violins (feat. Kurupt Young Gotti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22fbb06e978445c78e69437e6920822b9c38769d30ae4d6ef51309fc31a08ff. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USLR50100178.
Run Wild (feat. Shae Fiol) - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b255c3f673b2269c9648c9bf251686cf134e6b40cac93338ef1e5137d60171d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USLR50100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed24c72da17d560cad41a4e0d0e5f34bc6f7ff95998455675647159286a4c461. 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/USLR50100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed8b2d2329fa131c3e1774c7434a7e380a638737d2d17c6cdb92f40b07f840c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USLR50100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f94d04c22af889a0d07a7f907087e2f41795e3a4fd444392e89136c261dd5e. 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/USLR50000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe37f727bc073041d8f9f8743ca26d0147ddd48d95151f25c94f9ff53c073d7. 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/USLR50000476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4479609b1da3767f4d86a70636068c8a87f9f386f3fbfa4c7b32d5bf880da6c6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US2S70359004.