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 0x8deeb5c7db0897e94dfb90f5c6ad5eb72ff75b99f18da5ecdd8b0d74cae98d8e. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9dc07081-fd0f-40e1-8545-111826ada0b4.json and https://artists.proofprofile.net/proofs/artist/9dc07081-fd0f-40e1-8545-111826ada0b4.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 0x8bd3c872adc4902cfd4e10ffd9c9f79c95b87e1e178223ed80002e691e30ce34. 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/JPTO00100481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2a261c7942bfc385108afffaa2ecf8051abb726bb79ff0bf9b819236b01454. 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/JPTO00101414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484018128d0d25b087498b5331c48270f120154297589e87ca8a9cd3eb7295a1. 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/JPTO00101428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bac64d6320be3e6264cd3e6edcd48b0aed5ee563f856b3a13f2ee2ed5e1597. 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/JPTO00101087.
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
Dear Sweet Love ～夜明けと落日に～ - AFTERGLOW VERSION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413333271fb4cb74546b3d1b129be4518a9f4fbcfe7353c50c5cee041e14fea4. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/JPTO00002067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bc1585e192d19bffc2fc03bdacea9f03d2e8a5cf1b4a0b8cba0b880f0f132a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPTO00100482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3747ef31ce1f3eb008b3bbd87adb543b998fe49a95d89f16732b2281919d08d5. 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/JPH711100879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c59ff8de49cad982fc3fc5220dd9f48ac90fc43e6a895eccd70de9726caf8fb. 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/JPH711100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a51456bacb81d7d0010e8b53c84036fc24ad44f7d6f97445d53065b0be0fc2. 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/JPH711100625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac980001036cd61eecbd3a48773d63990dd1afbc45c2b80a82fa3249189a16e. 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/JPH711100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa3499570c57ff2a2b199c7df27cfff35f90d268725094a0c3d4596ce2e024d. 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/JPH711100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d1102ff31822b9f8831d848e6eb90c3d8bf8f5b756b1e64266860f0a3ad378. 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/JPH711100511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba4d111526ea444ca17a5178e1859f1058ff005f6b18434e0698fb6653b6c8c. 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/JPH711100443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eb49c5c3ac83d47363863794a173b54788ba46890cb3fbe6d51664a2b907c8. 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/GBUM71900215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c818506e676cf2b3f942b8317d0bd8a799c1646c62d6434264439a1eda053ec. 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/USUM70502718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a77794186938a5f7c897aff5e1a6123bbbb6bf93175644291d008011dafe1. 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/NLG661700429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864643fa07378624603677756a899b1845786d6123a935489dc844713cade74. 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/USPO19600020.
Dancehall Queen - Delano Renaissance Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c1b8353e19ed630795c4d79ba39506cf51af3509f2428781bd5161a628231b. 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/USIR20180483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a74024e919632afff77c111c1de6a251c71cc0837cb3f8fdd02eed670508fe5. 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/USMC10300395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191c66ff86524f128fc90c2a11c710e714e22d81cd749add264e29e14e17d5ce. 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/NLG661700546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46cb9fa324be84b0b1bc400d1dab6e107b26ad3ed5fcd034b734e9327a3e29a. 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/FRZ060500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd28d291ff2ecde5b53c4184c75d3977ea2bc22a23ef93324910bb8674ae4e0b. 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/USMC19340773.
Tour - Lil Jon & Paul's Mix (Compilation Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce588204394cd54de718fbd72c8dd9ece74196fa1e0778653d00398bafba2d8b. 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/USUM70981240.