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 0xb946f27c64fe5b3b25373908009037eb42431bd0b7276ccfbec114e9c6d95a2d. 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/d3d8adb7-f863-4824-9aab-68c22b2d1c38.json and https://artists.proofprofile.net/proofs/artist/d3d8adb7-f863-4824-9aab-68c22b2d1c38.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 0x57087a05de0b86d1b442c4af5767a30fb6ce9d1ac846b9cce4ebefbd3ed103f5. 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/DEMA61905990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1a73be4b3f5736af3c8cc352d57f8aefdc346aec5b80fd39bf3231151c2ffa. 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/DEYQ92200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28962e259de4382c446359522d65a5c41dd2d1e47b59024f082e0ab2ba3e1dd1. 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/QZKDK2291380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe588be2c24ee18568c4fcbf78729fd136b34cb8a8a89c97a37239a06b34608cd. 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/DEE862100749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8418352d17a82a5994a396abf9d89de56018ad4bed2eead227d92c14b17d6. 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/QZS662210421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35466d26adfc5808fc5c5acc3104b29b97b4b083e57a2e5d1769a3601474d991. 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/DEMA61906060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf51d7932198978d053e2a40aa9ba5e4591bdf10b6b8824366aa81e3496a244. 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/DEEA52102110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aae28e5b2c72d408ec0dea40edadd50d0453e1bd4b31c0d03144ef582fec2fb. 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/CH7812232778.
Right in the Night (feat. Plavka) [Alternative Extended]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aee2ce0b9c1dca40046edee6dd10ceec7c0b1ec2aacdf2ae34401e6a6be489f. 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/DEWS52200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff571d93af7928583aa50a9dbf8d46fb3682dd5b8ddc77dbc4551d693914859. 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/DEMA61905610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87266019fe388f8229ebca5d9082f863fa085773240b5e25f39b0a1b50b1d39. 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/NL2QC2100776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a3c529b08e323f565221a315d5a2cb6c1f7a8bb21b8aee9ec45674756140b9. 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/QZS672249310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a6a94b94b720c4d19123cc56c5c11cbc7fb94bb35901d71357061dfe56c1c5. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZMHL2292439.
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 0x53e6a65193cc95896c42daed326c88e63036cf2f624da5a4ff2ef2e815a60516. 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/NL2QC2100694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d51a252bf1b2d436f7e4b18f938957e8c69ac8418524999f96cefb9338284e. 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/QZS632235357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62a8644af7d49880bc9ff5dc1fa12a9a2c9bff21fa8f4be2db56ac32ba2d3e3. 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/QZS672254295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3d072ff34538d57b9e8419c1c7b17e2cd5f70829efbfe742d5184016b3e4c. 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/CH7812219757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3317604f02e1cca073f6ffa271f720dfc2d6d3a951d635f1744cffe20d09070f. 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/QZS632289695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22037bce4f2809be5828bdf73dfe524207b67ec2bbca50b7050737cdffba4cb. 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/DEMA61904660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9826ecab796df7343f95ad82cad7aaef7f6d45da0a7b54b7eda470230f42d45. 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/DEWS52200002.
Dubi Dam Dam (feat. Chris Gallery) - Bounce Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82812dcddf55d8a4ff3ead26890f949d93195a0add086fd377573b972c50da16. 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/DEWS52200009.
Dubi Dam Dam (feat. Chris Gallery) - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430db5663f84c203068a84e08a133cc27671b4870ed7e9b8ff97ae09cb52e9e2. 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/DEWS52200010.
Dubi Dam Dam (feat. Chris Gallery) - Bounce Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b067017fd9d9b539a82097ac44859402c5c72b726bbcfa6abfd5f9499810ee. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEWS52200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba32f3b3cb364cdaba954a9dc48ecef8b42dbffab95d41aed3eb3a6c8853698b. 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/DEMA61904630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af2e5075bddd01be5004d504a9afc3e9a8325c536963c21143f8aa54b64e8d. 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/QZKDK2249307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8356d662df9057d711001c3a50a561a2cafa47b00978a41ab0ca9891a498a6. 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/CH7812106181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb294a3814fa9b5317ae5878e7a355edb6d74d710b94ec8d26e89dbec94aefa66. 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/QZS632140960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b80361188cac19f18d7ac5ba57fb3a22c29224574a9a3a89e41021b4445054. 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/CH7812105304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb46d18398a4c20275209d30620e832ce3342e5b7bc8298b36588ea43c9bf417. 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/FRX762119840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd64a73712f8179c06745abf61db4627c9fb4487e95b0060a52853c1aba1c554. 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/CH7812100363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39aba05aa7101ff5dc18c9ba06af3066b7b2d49ee853157e74f31693cf6864f. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/CH7812100364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3726e6f4c7f669ffa6a4df1874ea74b03057e31b3cdac2e6f99b4159d15de99. 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/QZS652156340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fae56b99fc34e433d6d14a4ebf05202649fa6364e6ef144fcd58d93172dbdc8. 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/DEPI82107412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56917e6aa82796a3df7f31a0acc10931b5c5e04712b16f827fb31a09546243d4. 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/CH7812193107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eee25f950edbc6a3f67d445e13ec31b4db5dc7254c2eb9d5a8e809188770bdf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CH7812193108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc30546719f73ffcc51cc71b8dcb8da0fa5f5cd7fc9ade19eafed3eb824a0d79. 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/DEE862002582.
Posse (I Need You On The Floor) - Amfree Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103153ec1b2fe5d6672b4f242db2d6715fcd0ff39709b4d80057784cc31ca68d. 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/DEN061401485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcad9f69d017eb9b86e24f00596c8e06c259c2f56c2d5fbaf82db8d0aeb2d15. 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/DEE862001672.