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 0xd46981899f796d7298ed9752c3a26262d98a175ae2d4b75a4604c01e6c6a130e. 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/aaa5a6fc-6c2c-4026-84c9-62cd01ce3950.json and https://artists.proofprofile.net/proofs/artist/aaa5a6fc-6c2c-4026-84c9-62cd01ce3950.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 0x189417dbf222e86371c69a324632060fb0ca6d7acce3605dcde8dd5768c73e30. 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/DKUM71700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3157d6adc640f118a2698a3e51ca26cefdf2764c094e71f7908369dc61bdab1a. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:02:33Z), 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/DKUM71800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fef377ce813da9ee74753a75931cc497b77c69750e0cfd2b41832f5fc59a7bd. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/DKUM71900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68b7879b4fb43424195e8ff156366de7ac706a0b9b8781a947a6ba205a529fd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DKUM71900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c508c25e754d8b60afe708a7027b3156dc46af311512bac656dabf0d286765. 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/DKUM71900003.
Beautiful Scars (Maximillian x Moira Dela Torre) [Acoustic]
Beautiful Scars (Maximillian x Moira Dela Torre) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388437ed90b7cb13fab13fa561d41597ad8e6812d44727e91a7fe128fcf358a8. 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/DKUM72000908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177ed1ad960f5085a09bb463672a92768f68e1cf432b15bd79ec18227df0b6e0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DKUM72100497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59805186e9a8b5a9ade2fdba47c1d5b78290f6a3dab392ae116a2948debb522. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DKUM72100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2260aeec00598d3b20cbb86384fbfb5f51626b92301161dd7a5f742ee877c8. 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/DKUM72100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb5c5871cdb5814c44c8edf4d338a733219ea0586945d3e54c36d2c636d39a8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DKUM72100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33df88f3ce674b51a65ff8ad073feb3010604c093cccb597a2e484a5ecb3e34d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:58Z), 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/DKADG2200560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515ef6775f830a1ae8b9d3e9f231b740d1650a7fb789d959d51e52c72a950209. 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/DKADG2200556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a66610148e7be05d68ba50f50eae6912db215d43e526f67ce5e5f4f600f9dc3. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/DKUM72300425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa603c5e6aeadfdec0fd23944700d6ff41b29ecd87109612593dbfdcf61bd6705. 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/DKUM72500233.
Hurts So Good - Maximillian & Kina Version
Hurts So Good (Maximillian & Kina Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180df4dd68f33907851c871542283fb1e575e588ebcaa0af892df7ca924c71bb. 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/NOUM72100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd36ad0e210dfa34ec80ddb5175c893dc76d2471d9149d0d37b031e6c5e9c831. 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/SEUM72200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafd8672b3b88c76e48430eb28dd9a9f556e0322bbed334622a90127e218ec05. 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/QZ8GX1701328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388437ed90b7cb13fab13fa561d41597ad8e6812d44727e91a7fe128fcf358a8. 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/DKUM72000908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180df4dd68f33907851c871542283fb1e575e588ebcaa0af892df7ca924c71bb. 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/NOUM72100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21562a18fe446736ef52813b06e70c9705f3b6191cedd2719a0176d1a3003c93. 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/DKUM72000217.