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 0xa0342d949a17152eee12516f935e03252b2b14c25f4af8d3530962b6fdd3c5cc. 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/933c9ac5-d848-4863-bb96-0bd65a77e8ca.json and https://artists.proofprofile.net/proofs/artist/933c9ac5-d848-4863-bb96-0bd65a77e8ca.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 0x1e85a4e68bdf33e95abb990a56f55a414f77aa022ffe83e07f1b4e8674c3aca1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QMMQT1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477f3f5ec3f366ab62c19f3273944ef0dc86fa6726274c220dea683a76de9c01. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GB2LD0900848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8885559657d2d446796e65b6507b02798ad901498797fc16b1705cfdc0bdfb8b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLCK41025416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10781e8b2adf77827dafeaa4719e94124cf5a3079a175099ab78b83be54bec8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBCJY1800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1273b434e6246c9e2fb22dd68b1fcbe2211da6882d224e4b035755d28cfb51. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBCJY1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7422803f489044c290887ee5bbd993854ea630a60ab3e59e959dff901d5543a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBCJY1900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a0660d2be20b198bb18ee385bbd543a01ded6c2a4df5433aba2fea3a20f5f2. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/GBCJY1900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c56a535bf7b0971b25bb1ab6ee4f5b87d9a213ee44d37c9848218dfd92765b0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBCJY1900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64532fea77e593bcd9ac57e5d95a4273c04e2e37ac5bd28b8527ff4c2f468c14. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBCJY2000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3398c8425fa85bcbfc18177b87641f13dd9d3e1e3fa91f23c62ad7107ef81919. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBCJY2000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acd055fda5ffe58f37d80ce315f5677050ad085c86e88aa56b20f37f26a6969. 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/GBCJY2000435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55869eefe3dea55f7bebcc7b84894edee17b7150a2a98d11c7d79779217e1334. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBCJY2100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e373af660dadb9821d146dc979161824361f148db9b8aacab6f61dc6562886. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBCJY2100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21eabeac694f0641bc662888313392c40eeb9d956e4b8074ea2ae927102bfe. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBCJY2100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba802f818db6c13949362cc44e5c65b092df3ae7eecd91f60e5196c121a2364. 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/GBCJY2100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a63dca7ca95e68afb29afa13006f8d1b4b56c60ed98717ef335260cbad96953. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBCJY2100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4cfe31b00caaea824609f3ebf9f41444fa9670d73cfecb08d3f0fe435f8c6e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBCJY2200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3a470d1fdaf72e317a2a7ba1ad95895da42e8afdac195609c3b0104c4238a6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCJY2400532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cdc555d4f63b4962d05e2e2436dd7f8134590b39a558f57d33cad01b856a88. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBCJY2400550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39889b102c145a35b9b25dc75c294e36febeb3e96f32902571de41a4118b0558. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBCJY2400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde66ec52318608740f96225fcf5f9bdf665ed6554b29cdd324a27f7d3ed570c8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLF712500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f6efa4c186a2cc3b53703b47f508f08bc69ee792f5d521fdc46b407370327. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBCJY2500757.
Anasthasia - Blame Remix / Camargue - Fred V & Grafix Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb3f8c71fa958836ef72ea16cd81bbf2210f8438cf095a2982b32bfb844608b. 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/NLCK41012412.
Don't Want You Back (feat. Kiesza) - Fred V & Grafix Remix
Don't Want You Back (Remixes) (feat. Kiesza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a80919935a010ec9eca11e2f11b1856c1d4fffc55a2d69f286031f344463ee. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLE801700331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b9d84241bb7c8dad5617069a81bd826e0eb194e450c7651428e6dac59173a. 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/GBCJY1500362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab52f980bcb48d888f0be0d66157bcf3b47ac4a045ee212c0dfb769b9a3f36b. 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/GBCJY2000383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31b8450996792dd0311479d60de0fb07a458bac5d708e2f892d80b81da1e065. 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/GBCJY2000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deb382fdb223e1d0112fc044294d14a7d6538f48a2f5e0f0320b9d00996feec. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUDCB1701897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caf6ed2d7015f693bcb61dcbb3983630d44a860c7aa90ec59f4d6eebaf75b20. 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/NLCK42217576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e. 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/ATME81100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d09faab61c08818b97f945a72619f79e74dd33617413e39a4332a679289981e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBCJY2000337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cfeb30a91e3ebdffa5858e75330597d4d586b8e36eeff487eea66fffdc677f. 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/GBCJY2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706882fd6e9d44546a678c173f4ace3fa7fd75002a13a1789d8e13e117242d5c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2309136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10781e8b2adf77827dafeaa4719e94124cf5a3079a175099ab78b83be54bec8. 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/GBCJY1800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cf077b69c0954463b21cc51e5168319f1127e657e5c1e48578f9fe8c0541eb. 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/GBCJY2200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bb4a2d3a55228454f96b32a209426ae303ebe24d0b0c9bb96a209a36f969ea. 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/GBCJY1018104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7516e74124731f17ba6ca35e11368b4bd9d63ce144d2f4048119a0c89b3053c3. 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/GBUM72203286.