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 0x8a8e9e22153fb51d489c6367830c9e2a1ce5dfc105a1a556db9816abb6d006cf. 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/ef4b861c-bb8f-42b0-acbe-d9e051c11e72.json and https://artists.proofprofile.net/proofs/artist/ef4b861c-bb8f-42b0-acbe-d9e051c11e72.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 0x9b6a485131ce8b4bb50997df2ff9848e4e5f809f3ffac3558c1edb7efe5039c3. 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/GBKQU2142423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeed4a34173e839671742a4d488fc156582410da48b5029e1fba956c0ad065fe. 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/GBKQU2169295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53503900365c4ddd1dfba53f1244130811bdf2418eb7a432943f2b9233d933b7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBKQU2218043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceff508fdb749cf680d2b05547b7e0a3098fdbc2003ce9631fa77d4b96ec07c4. 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/GBLV62203847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe625883158322ed7fba69cd30ced0bd7307aaa14f49915324d121cf6554f69c3. 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/GBLV62203848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef3c46f7052817a23a61be27ea3652f9f9acd1f9c5d857da5debff21a19673e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBLV62203844.
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 0xeb98b769295bbe9b3a506380a934cb6b2ad5347153ee59283fc627d48c52b510. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:05:46Z), 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/GBKQU2342028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0143dd193ed095dc4ce723ec7266c26d4a870008f9b4e0146a3f5a14cc0a65. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:47:14Z), 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/GBKQU2357959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4cff797ab678368aeda6b8ffd54c80c3674900d44055d163c108d21250009b. 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/GBLV62303737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8dda326d02d9d12ca3c6bc928e542e287fa3c4812ff0bee6ccb35cf6b788be. 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/GBKQU2431539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec48f3b5d941d0d8a41e3ed9617094c7036011df5eb1f0e8cb7e0de4804405. 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/GBKQU2431540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb78aca71827ac645e7f2483249b3d3fd36896f95bc8c9b9796dd5b117d5ecc. 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/GBKQU2431542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e223f66656c0b11ff4f1e2f2089c0737c038677a3335d4125312a89941f471e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBKQU2505882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b16cb165cfbc318331b2eb059ac7f7733538405523830522dcfc9da8a52ecdd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBKQU2505881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcbf1cd7e1d103b1d33b75161a6ce27e4f452229016603c21fb7823790a9e22. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:35Z), 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/GBKQU2515894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc593727de9e66878c32e4b6aa202e4cfc57a3a9ae09af67842c2c418c6c1d19d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBKQU2525651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206d5f48641c062040eb5f0cdc9048b58259fdb7f6558d62207870b6a3d4e16f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBKQU2525652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d376a0125bcdf4052e982ca390d1750b0bde17804da5d478aba87501dab0273. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKQU2515893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537250331aaf44d9f83b25a2f2379a9606e6fc0eb26b8f55c32779e7a26fded4. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:22:16Z), 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/GBKQU2533200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b16cb165cfbc318331b2eb059ac7f7733538405523830522dcfc9da8a52ecdd. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GBKQU2505881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d376a0125bcdf4052e982ca390d1750b0bde17804da5d478aba87501dab0273. 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/GBKQU2515893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc593727de9e66878c32e4b6aa202e4cfc57a3a9ae09af67842c2c418c6c1d19d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBKQU2525651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31094847f7439e1424023bf3da519912c724253c06fb007343f470f4ed6be3f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:23Z), 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/GBKQU2533199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4da6e6c03f6bf0d79d2b9d0d46ddbdf6de005f9b7eb3a63bceaae54c1d3ba4c. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/GBKQU2540080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2477c20f0e3cf325118bf7a2f5994517b51e541934c7b35424d22f2a3f3e48da. 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/GBKQU2426670.
Colorscapes Volume Three - Mixed by PRAANA, Matt Fax & Dezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87f3a56cf8988c9e33663e075bf26b7a5fee774780e1bbe7c41001e2fb38440. 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/GBKQU2194008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09d9eb96ff51f9c9a6f36588efdf3ca16507b3a3d4f7b98380c9baaad282a73. 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/GBKQU2349153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85e03213623fa03b79b36dc9a29ac1eab14ff8cf4f327b40a083c7e231f2c71. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBKQU2447443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ec1866285aeb3b26edac1fcbfbf6a4f507acd70b727cd80f9acbf3a148396c. 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/GBKQU2429207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93cbfff8fac8b0dbebaeaae3bc72f79ef85a78d3fdb6f347dd21caecd73f2d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBKQU2377741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88af6de82224e743e2c3188b6f5c5db81bc3e9e975b4f367a48d3c27c8aa417c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBKQU2188897.