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 0x05f77ed7183444b694e47e84a2c75f14b53f0e595594bbeaec21f1b406af0e21. 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/547bd786-cf85-4634-bab5-a87463bd275b.json and https://artists.proofprofile.net/proofs/artist/547bd786-cf85-4634-bab5-a87463bd275b.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 0x2f15e9c98884b56533b7e699648856d26e64efdfbd58cb5843b98ca9f24f4a12. 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/USPRZ0810098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4a492af0c23e78b0ccd31e86707bd000e3168ef135f6f171723b4abd586ac6. 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/USPRZ0810101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf932d4d9d0a8cfd9b9e5c7378a8a7cccd7b9dcdce773ac3b31f6bc2c8c6351. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USPRZ0810103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8949bc7ecc88fcdf6940e3a86c4a1cd84e07d385a20c3602445fedfa47c860. 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/USPRZ0810104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dd1c494c0eb79d02a761a08218d31d49152754a4c6c8a0322a734a13bfb1fc. 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/USPRZ0810105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1e8bf8e05b6e33877bd7f50d77b6e2bf7d95c209bdabacad3fe5c3a826d8d4. 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/USPRZ0810108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d15a68d79009ad91ce6aee535e6420302e2c64f74601c8ad88aeb3e0c382dcb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USPRZ0810110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c87cdd5a0399cb2c2c5f51d2bc3accd74bf3e8c96186c925a8c53736e91f16. 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/USPRZ0810112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77ad99486304324195128b8302a33255ff3fbfa8b013f6a0abd462b7da3d8bf. 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/USPRZ0810114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639131deb077faf45239d143446230fb38d0e63646b1b2c2fcbbace03020e9a5. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USPRZ0810107.
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 0x4ac07b3208d5df4d7d9372a9ff18614e39d5f0ba2d02500b826ccc44e40359d6. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/USPRZ0810100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6414849ad14480525a48f43e762383ea35e018b376bb53b3ff91cea48156b43. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USPRZ0810102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7658b0dcf1e1ba0784f778e1a0572e8427fed107a0f5dff37681e0fbd4f248d2. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USPRZ0810109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a4ff49a43197a56c8c8c56d2d91036c384498adcc39ef3edd4f2231931f099. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USPRZ0810111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81eaf052f896ab3997494429eeb1fa109a80375e5bc0165d32b349e71dbe711. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USPRZ1100006.
"Sunday High" First Single Taken From "Dedicated To The Og's"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cf56716be00eed7bc1fb741ada6a031ad1a372e953b0635fb2ebca8fb6ea4a. 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/USPRZ1100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6601510050c93015f7a60b986f608965da9b9f532b44585768bf5a45c2bbe. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USPRZ1100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96984cd98f7b52d8af437372bd143b70fb707c818d3acfc82f5821ebbd3f7c88. 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/USPRZ1100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719ec858a3e0ca71097848b1f53f294e69b96d0db8ece3b4be6cbf7ba37f357. 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/USPRZ1100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc7733e8057790398cb6aed7b70de901cedc7a8f5b850d395ebf86d39c731af. 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/USPRZ1100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792da61d9cdd32aea23a98e5bb5c61c8b4e60a974f8b3fddf07f7435870d320d. 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/USPRZ1100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310652514b1ac0e250212a5f6fa86d50b83966ec601e290fb80f90027c1cd403. 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/USPRZ1100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e495d4addd3e334e7469b8fba7781ab1e36f2e9435c1c52f66198257b82abc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USPRZ1100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d2c7a7c2e6031fd6a62540a8c06f918e39bde95123d4c951330acf817cd0f7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USPRZ1100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d4d119362064db3bf1ab1ddbbf2704fb58dcafb69fca60ea8afd141d52c11f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USPRZ1100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585850cae089d156a4df1d191c1678816eb9f1e0f275c2a323d7bf816f8b7c4f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USPRZ1100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb37fce8295d5379fc3e243e789867d3a8954140c8af04eff42767d7689460da. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USPRZ1100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400470175fff3f4e9cee9ab2272f7a574f4c7470b7e04102f443e93ac4b11d98. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USPRZ1100144.
"Thirteen Letter" Second Single Taken From "Dedicated To The Og's"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063ea99039023a6dcc8625e86d6eca2dfe1cddafc47c501568fad8fb9b1747f9. 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/USPRZ0810278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49643ef3a7302e3e15d01b364eb8cb1df04d905e990dc2265f8cd151b26d790a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USPRZ0810271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe37d5fde7e49268861b6337274be8ad0381939edeacded7d36beeeda226f2e6. 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/USPRZ0810283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a7399a1b5acfc86a2a2ff311f5055bff458650b2b121fc5969a58b67f4fb2c. 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/USCGH2054459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bedcedd3b53f30086d4b2ef08ae34982ee16504fec1b78b42fa38f051aaaad4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USPRZ0910087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9804ae9072b04fcd1029d6a684c34b79d24f1053d2b04b578d30ee7e0407830. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USPRZ0910091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35c6ef8d7754b6cd2e75a2780fdce50bc374233d254964f8e5be77334b7382d. 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/USPRZ0910057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18147c1216b3d755904e481398349510e923fbab6de339a869ffbaf42d5433cb. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USPRZ0810281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e3f5c29f7a6a3800c05efc2b71b6541cd1851928aec63f8dca3c3a8919d77b. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USV291420936.