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 0xa6667be9f272c5d249fb9f0cd72f2a127abb1515dc27c4a1cecb3832e4810458. 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/2171dd52-dfcc-4f67-990c-5693a6128240.json and https://artists.proofprofile.net/proofs/artist/2171dd52-dfcc-4f67-990c-5693a6128240.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 0x1b2a6c13b38ceae5c5a62bb85b94582b78808b8952d00ce11abed1d32b65285b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUOKE1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c98113803d55c7b748b842c3260101f42046d501ecb6d49ab7c839e7f2ad405. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:01:58Z), 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/AUOKE1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f5aea5bdf618a61c33e7ec01dff7b83af6d478327b0838c969c3b925ff5195. 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/USDM31792901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f5aea5bdf618a61c33e7ec01dff7b83af6d478327b0838c969c3b925ff5195. 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/USDM31792901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa4e79512621a2d18cf82f85607ead9284c9ba15df4d8c62f2f4f92f1474860. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/AUOKE1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fd47c9848ed954c2ca1d0071a15e58f8bf7d4920111f9804bc0d22660e8fe2. 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/AUOKE1700040.
Fading Out (feat. Rromarin) [Dugong Jr Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e9a1ed9035861490457479c2d429a4bd773baee29eacbe8532a56c1a3f30b. 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/QM24S1842659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eb58ba27ba0ea2cead599c4ce6908c468dcc5c94bffcf31864e510db3a07f4. 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/QM24S2010845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2265c1c0255497696aa63aa9063e4a458bb741934711b2734c66048fee8c0831. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:58Z), 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/QM24S2010846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988bbb4e5fdf7b94da281c43fcf939e0169f843838ac80b78ba0c6ebe37d67f9. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM24S2010848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcb34843abea04fba6d402bf87209cea537c04b5f9eda8e1ef691c775b1a8d7. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QM24S2010849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cab9443b9f6e06370419a97059876500884c8160991e6732091d151f224f1d. 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/AUBEC2317745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5c404547f17f57530c65cb6f67983d432fa5087be32044d84ee886710a31ad. 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/AUC1K2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13aa5c505b6b124034350ab8da80e0132b0e41a6cf4dc5523eebb972ce696cea. 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/AUBEC2317747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6333060662efb0ac12a8f75509cf0f0329841527c7d46f348373d74ec9a2ab7. 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/AUBEC2317749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6dd59ddb6f07f8c22aa7735259579965e17a9f76e62d37e10aff4c0df9fa25. 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/AUBEC2317751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec010bc1739e65b55eb74d38ed980353e76fb94a476a1a894a5a1da3e7c9323. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUC1K2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ac720c14fa29f4e9fe10f12923600c49459b1677499be7975de7b9e2dde49a. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/AUC1K2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2336f516dd2689da8676230a8c17e460fb300d8782b6e7b5fc2c98fd1219061. 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/AUC1K2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693bec1cf97298e53a760cfd0c8c9e0bbf765f61939b4593749ef0fb3f078870. 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/AUC1K2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8e00f982349d03780a96af1b41d8a400b3be8aff184b60ed618fff9a493cdb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUC1K2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbccd610c14d34268dd872c4454c2fc851eb3a99d5738201c961136c9e2d2c0f. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/AUC1K2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2336f516dd2689da8676230a8c17e460fb300d8782b6e7b5fc2c98fd1219061. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUC1K2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6730279a99c3646e3ddd97bca2e6ec5093f2bf5308efc94ffc0ad9a1bdbbfee. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/AUC1K2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4393dbf6bac2ed3e60dc0557524b3a7b4b484a0423def207159386f1c61be4a. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QM24S2403180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f01f917c2374d9b63489a87a187154c5b93a3177ee2af000d6a546c795897c0. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM24S2403198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065bd1f9f8aa0027512f64cde6c5fd8bebf68ffc985a35b22fa75ba13d345843. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM24S2404137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53fd3115ac9ab5df9bf69f82c8887b00366f0980f5a8091fb749ea2999e5082. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QM24S2403233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2004c032a7478bd19b4aa4715780b3b5e98be5fce054d0a7435084cec5902f5a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM24S2403949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f3dc389a81cbdf127393c56b7a664e550161ffcb95f14b23154cdc4a8a893c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM24S2406336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76b14dff674673015602b02c983020a6e9257e262e8d7079d16e6573620f842. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM24S2406409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecc0b17aeb948caae1996de09c6c31c0058d9b152641fc144fee5e95724928a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM24S2406448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9ca2b875c1e6e124ae7a830f9bfd6ee922c9a76e7398f5d11958dd630588cc. 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/GBUM71601458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe170774aefafa84a680ba394cf6393758b3b179b899555f4ac77ea1ead5431e1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/AUOKE1500030.