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 0x03e9680625dd6a92a6e3ff135e11bdad4d50d38ac30387dde610520c68582e6d. 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/c76418cb-ca4e-41d8-82b2-31800c2971d7.json and https://artists.proofprofile.net/proofs/artist/c76418cb-ca4e-41d8-82b2-31800c2971d7.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 0x48724b041fa727e59f547237c19c810237777238650c44bc3aac858c153e8dd9. 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/UK4ZF2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cf469d29c1425c1279ff3eb296136693de4bdeffccf4a4b0e84494bf0b5132. 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/ZZOPM2119431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc291a6c21a7681d371cfda289d6dc0118fb09de122f8ab709cec60480c0fb3ae. 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/NLZ542301049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb111a7785a02796d3823a700939dc9f57bd2bb52d87bd857caff74c5c42b6660. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:09:38Z), 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/NLZ542301042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b20cac9ae085cd3e6de3a771c8637a22f7a1d4d133fcbbd67e84ebc7cef3ae4. 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/GBJAJ2201332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40778e07c9a1e39dca06151c3789ee8b1d1fa50bcebf990bb57853ef67eec0f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKW3Z2201765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c39f793b798b4925d6463e04d64644166e47c421ce121dcf5bbc4684d513b7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2234618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735621d0f3815eaa71d0f3f85ef87e2a6efff6b08f8339434dc279db9790ca2e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USA2P2234619.
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 0x8ec9ffe27692910f5701edd67ab67bf4a00c9a8298c78e2cf67a081c47ab25f8. 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/GBJAJ2200965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71b14250919f6263a2a8ca9b2a6c3e3bb52cd5765959bbe348b29b565843563. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBJAJ2200966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32b180f34ac0fb18bb3f6ab7f36d933bf5497085cbd191b695f9f79c99ddf79. 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/GBUM72203295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6454467173580bea65bd3bde9f0fee0c4e11caa4901ec647e31e3162576ea5e6. 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/ZZOPM2223407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef7f88384fbf7962b1e00b23c3d6ce1d4f9ba1a232ba43887bdae0db9099ca. 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/ZZOPM2223408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc35aba9356a22b3cba979192fc414a86a0ee8e73983c7c5e914de0dda681b8. 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/GBARL2101845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6122e382fddc1164b495f69c31f2cf9bb516cdd1a14d5697b754ea924022ee35. 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/CA5KR0017396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91f186f34199d876ab1dfe199832465d6d7703792be0448cea52d97728f0497. 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/GBARL2101586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c898b0c24349391c6d5ae114e08446705d5fe89f7c494ccdef19765f96c926c. 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/NLT2H2100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eee73c1b3890c7fddfcf7236b8f03e10a40034d9c9c5b1f1ec32601152a352f. 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/GBDLM2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc384b677c3ac19f836ef1f6df20020b9910b4848925b7aef6cffc7a1060343. 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/NLZ542002188.
Ibiza Fever 2023 by FG (Exclusive Mix By Bob Sinclar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd320da94b0245582e4f71b77b07d63ccba6b9d8f02efdbd4595ae20e1ce6dab0. 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/GBJAJ2201331.