1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x13c98a0f6e6190aa42724ac6eb81828d7b63ca2603cdb5f4289566f1360475d3. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b84a7f51-dfbf-44da-a7d8-68f5e072a007.json and https://artists.proofprofile.net/proofs/artist/b84a7f51-dfbf-44da-a7d8-68f5e072a007.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 → block OTSBitcoinBlock must exist at that height 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 0x883d1c99bff35366e763d0b9a3c7ebf51b4122020bac5b2c2a3243d6d9c45607. 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/QZDA42192198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06c6f9cb1879d07834e1734ebb1ade03e8ada4558cde745b868ccfdbd7bd43. 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/QZDA42192199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2772509728c1e5e039eb4ddae2406d7ae964f36c96dfbce4ee5e313beb2f888. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZDA42192200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ccd379f41d653a20fa402055fcd5984db449f570742a4ee7a079ac1a5acde2. 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/QZDA42192202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b431df22ef1cd245692538934d4f32315d8eae6c2978b310dcfc8d536517b2. 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/QZDA42192207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fd808d2c72f6e00a8b6b21821a4946546c32ba9eafaf1e45e13c8ca787ca05. 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/QZDA42192209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc355c6b37112be324ca70e946fdebbdaa1074b52378a851d0e28bb67e4adf3. 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/QZDA42192215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6223dab1f5443e938eac850522628f0e232f91bcfc36850a988c1b1e52facd39. 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/TCADC1759722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4123aec822dae44b7931068fd9fcc71d7382643074be222f1fbc783c4d2f4cdd. 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/TCADC1759729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d0301f0d99bfa87082646561bb96e514c7c8ca9f874332001c957d88709540. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCADC1759733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57242771dccd0717c4b16b8b9df3b91fe08ddcd29d6f057693a56779d7732a4a. 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/TCADC1759735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f7b054e38069ae0d6874d1144e7fb8d1c50b7fa3d7741aa41db948428cde2b. 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/TCADC1759745.
365 Days of Summer (feat. Googie Monsta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172b1a174441a043087f921364f31f7d983caf1077b2edb9650cec0d76ef79b1. 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/TCADC1759755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e288d6d31ad70ec93c74c02b7cef8ec53661d1cc70232f506db2a651d20c48. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADC1759763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce4b5b505ae3443e10626896451f1fbcfc3951be002c5a74ece9a9cd4e40147. 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/USDY41625040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d2fa4da51434afddf4fc2f53c0a39892cceec21e06905c0fa54e907a6d3c1f. 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/USDY41625042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2211039cbcd0588b3e1d7d2ac851399199dd810bd86c6fb50cd4967964f572e. 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/USDY41625044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48284ee7328eac1dc173d3dd6594c2f5174b847f4f5ebbcacf78375ac7bea6f8. 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/USDY41625045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ebb5ae56abbdf9b96c43f9b2aadb1562dc360fd4107dfeb7731f29249ea761. 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/USDY41625048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a385f221391d562629bd664b8de7872db790040debeb647f8a0e136eeb2930. 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/USDY41625049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefdd8f793f7acee73b40b238349fa3de26c3b4d0d551a2176c5dfce5fb16095. 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/QZTAS2373019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d95c876ae61c62d447c32f2f1f4dd672b6f68f2487838c27d2f240955af227b. 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/QZNWR2277795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf42eadd7125f64b5605f25ff200373fa419eccf892c743427f463410c2aa698. 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/US83Z2352590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1206d2da88b0e8daedfd09fe9609dc18c6b56f9c20728fcb8a6cdb53b5d946d5. 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/US83Z2352591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ddc7af7da3ddf6b1d0f313db0567357b87c3b34def54cf26c0b798987860ab. 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/US83Z2352595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e64711f567723642ebac0c72295b10301e4d5592483ee40ef3258529055312. 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/QMYPV1200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7983c280f0e31880d55d3a946f2ddad5379853fb4662be41d6b224ac637ddcdc. 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/TCADD1748548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6890a57d9f956d3ca4cb5989e6f18dd7d6bb2ff72a508f6822d20cbe7f595b2. 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/QZTB42392812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c8be7dd060e7aa5bd6cb2aed4ca50aecbb79c539f90deb6de0c27560dcef2d. 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/QZRP42250299.