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 0x4c40e0597b8286ea4ec477b72b170141d61509f706e357212dd7d947c9567bd1. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6de0ce99-36ae-4567-bb30-ae7d516dd87b.json and https://artists.proofprofile.net/proofs/artist/6de0ce99-36ae-4567-bb30-ae7d516dd87b.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 0x0367bf3fc91ae1c7a0292f1b929ebee38ac671203754748e6affdb08b808a99f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USCGJ1704587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a5bf8b4c8171273ca5d44d5dcd6a5adade3372fd3eac3974f0aa37a20ef6ff. 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/USCGJ1426728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d8396a41e56eed3afe9d4460a9332a06e9c4a3864fb963cf6ec9a7f92dd29c. 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/USCGJ1426729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf704da89268cf46fbbc5fd18c21607510f84ce09dd5eea4c4894dd6763fc8192. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USCGJ1426730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e792976b2f87d38f7d53283d29d8a9a9c28c335f9e997d450e18cca804e3a41. 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/USCGJ1426731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab2220c759b142a8b6611a2a1f1139d5622620e3e632da8130eb90e9ab5f1d3. 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/USCGJ1426734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f90ea9cae8db1d4ad5b4f4f489bc2aadb96c84c9bc0d2bd20d3d6b1e6d8e7. 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/USCGJ1426735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13058813b046ae1df12f8db19ebe25e657045a61e45f444041ec4c0d5716494. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USCGJ1426736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e906ab29a3f7177fc9da86a006bcf95042492da654342c0f5aad2f2d8fb1449. 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/USHM90920759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bea5ab1d80b9111bc9fe3be61d0c4877b435fd7a910dc5b3d90cc93cba342ef. 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/USHM90920762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be56dc12ed97666adc38c620f59ebd981c9fc28a6f1272713664cc7de62c96d. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USL4Q0822562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67151042282b6d84b91e57de840e2e5d7e468e367ae46dd0314640e80a0e8f1c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USL4Q0822564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee67909d70eb52bb8a7de71fa5dbe3f210b525a2199e32594563cc3c8c26c4f. 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/USHM20944051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e54a46f47f4909b014e0066d81a0ae9aae265406b1c991dd06c068e2b28337. 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/USHM20944052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb51a2f52d0186d49f8a2d88df4623c3c060fe87853518f0c2e0b8117a8b77d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USHM20944059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302b8032cb8524d818acef1de3ea6f528f768e8f517a221e8a4fba875f1a4942. 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/USDY42051995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec90d592dc8dd6568578824bc2aa0cfc53c181a895cf267bfea9c3fcfd64dff5. 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/USCGJ2042600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2317b52bb97809b7f988ceae92ed3877154ba8b311e8a441880bdaa31606265. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/USHM21912164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0dc93258ea992c8d3847d2b568e9149130d3ca83f9addbf01b3a344b2f0d8d. 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/USHM21596521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe913d4eed2ae5c46742f9c084e914011a201bdcfe7548a433bd544f3121a86eb. 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/USHM21596523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca481a0539233ab1e1f015f9e5046b8e00683a1289e8de8da19b42b69f0bb5. 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/USHM21596524.
D.M.R. (Bosco Beats Remix) [feat. Br. Steve E]
Quickstar Productions Presents : Unified By Grace Unplugged volume 4