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 0x205f8d62d83a68d28ce082b92dc64af141284059cdd6b60c6a0f5dda4528d185. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a72cb9e7-a9f4-462b-b190-1ca1d26a76f1.json and https://artists.proofprofile.net/proofs/artist/a72cb9e7-a9f4-462b-b190-1ca1d26a76f1.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 0xcabc4327efaa1f8ea1a744670ae9fd1a9a515bda3cd5c5effa3fd141b98a1425. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU1808349.
That Underground Feeling - The Chosen Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461215dcde309569476bd08d37e44e17878e43c775d4079e8db9983412e83993. 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/GBKQU1665833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e5fe1090dd7ae9e95d51f74c457055ec0e0f0a87a24635137ed82c7a4a5c7b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU1665836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a039995d8e5883a44135ac4269d38b0960ab523733d631c3a4132702d7ac76. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBLV62125409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe578288a0b5d92b5f717fcf1b7f5a62df1c0a4bdd7d202015b0074281d42184d. 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/GBKQU2021098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01450462fe59af7a59a6d351f1f40f1543c00fc8a25704084e9e1b23effb8655. 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/GBKQU2021099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117eb2d2b17bff1de1afa734cb15674f133449b6439ec142bef8d0a831e8214d. 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/GBKQU1951341.
Martin Luther King(I Have A Dream) - Chriss DeVynal Reedit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201ab6fe0bc4aabf9dd3ded6d438ff5d6fc2aeb88f6c5fc3da313cdd5159b012. 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/GBKQU1688489.
KaRavan, Vol. 10 - Heartfulness (Compiled by Pierre Ravan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a6694b4c017cf1a620455b84da132ad41a1cdac588313bf7ecb2be76e6f90e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBJKH0800756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad713a8760944c0d08126bc12f17721770f2a02d9f8d9591723a4daa63a70e5. 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/DKAZ71712703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349b70f2a629b59f9dd82cdb203623ca9c00918cb47a9cca1f413e4737ad4a8d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/IT00G9100581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ccc42e001446faae0e7f79c1e4c770cfdc062b004e362646a870a624a2188e. 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/DEU671302197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1bcbaffeaa14a78b395bad89f4e5fffad3006545e6f5a5b471d216f15cb3ee. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEBE71700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0508a7e4669977e550f5c4a7616637d6f289be5b4aa657ee5b100555a50ab0. 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/DEBE71700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa292e961a6556e6367bbac1779d0dfc1613e5961bf811adee94d31f66c52e769. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEEC31500014.
Nothing But... Soulful House Essentials, Vol. 13
Nothing But... Soulful House Selections, Vol. 09
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d343404084db18818afce68d7a1806be3f624b7511576f1cb642e8c5bc05f82. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2020689.
Anointed Elements 5 - Compiled Buder Prince
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e4e2d340ba5f5fe453c519a07a02538476a757c35edeb01bcbb1c665232a65. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU2006021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f822960071ef221a0bd7a224eef84005aa5226f61296ed03c83a92fba7f1df3. 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/ZAJPD2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8fd8cbdec86dcf3bc34c548f2fab92ed21efcf6ab6b78261d563e72bd2faaf. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ITX971400029.