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 0xfa7298e6ebaabad038dd89539ba1781131c25042835960308398679b325870a8. 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/3792be84-d997-4c1b-94ab-c5935e92b1c4.json and https://artists.proofprofile.net/proofs/artist/3792be84-d997-4c1b-94ab-c5935e92b1c4.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 0x52e8a25878a095f7a0c7213d4f95badaf3faedd204a5735ed8b3adb1481ff371. 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/CH2182200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ad3aa5318a5dc5a9b491cbf386c069d0bf3906b7f8749be81417f05ef4c41f. 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/QZK6G2341266.
My Demons (Tommie Sunshine & On Deck Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f295371e663313d1e29928d7c9f229cac374b92ff5a07c4971153b408c8043c. 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/CH2182100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263f7f5bd3fe8aa59b688b614bba5907dea42690c309fbbad58b70d37f821161. 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/CH2182000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10186ca29fd62667d080faa394f5a072bea2628f01657e82387c64cb81ee7b27. 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/CH2181700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fcc523f08b6d25b7c575629ef00c8030a0d107b1a7ecd3ae0259a9e3c83d74. 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/CH2181700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd15428d25cc3b45cc26bade6e0c9260aae445808e3d7215a8de6d9168faeb1b. 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/CH2181600175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9699b51e5d497e5381e1ab138366242b1f71f6a2d96f7d7584b8ff6ca514cc01. 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/CH2181800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6f00a64e5b748391149d13cd5bfe14452c0bdc3714e62b60fdb8c1c701193. 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/USUG12302960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747740107c10ba9458c63d0a3f47402157aeede6104b4fe4438d73c1e8eeb730. 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/USUG12302957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f09733faeecf3b6ce38b6a586e6145c6d5fd3ced16f46f69b74b47e49946bc. 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/USUG12204252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6cad5143dae844ecee8f21bfeea44a83a94ba9637c4e4dc9b56c992f26711c. 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/USUG12305234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad234a219f26d6a671fc5c3717c30a5f28e45da08b62abba80d5dfef657de24. 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/USUG12302964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c1d61e0c8cd0cfd7422f817d2edc1109d3f0e92ed008e19d50378549164f45. 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/USUG12302962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09fc224f52fa7ed5a9201cb8472571f03933e8994fa14d6ae4b696101a7a987. 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/USUG12302966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b87e03c3ec4667f38dcf304bffe8698eda3ea5e83f574ef7a6ff3090f023d. 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/USUG12302968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ef75a71c94f014e6ba7cf6d69ac36355bee74e5864df2ed4255a5e079404f0. 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/USUG12207900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87563173800576ccec49f9f7213b18bc773eda769ddf00b38ae731a515e479ba. 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/USUG12205273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6947c0f900b8f9d8ab166393ae8bca7697fb87b80e18fccee1f926a03005ee9. 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/USUG12302972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748d18791d0ee5bf5fa615bd85b12b0dfb23efaa77d4070a80581964cdd38659. 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/USUG12301123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240e1beec4f5471b900a93c33cd75a0750ebaab4daa1b25a5264d957e134f02a. 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/USUG12302974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb200df5aa73941afd3f1092b76bf2cc3a9f94d7414529f702ca32a4b31021918. 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/CHA012300670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870a13e8837a2b7a581214bf30e2691e02af5c50e0026c2f1617032b23e69c4e. 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/CHA012300505.