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 0xffafcbb9d3bb09256e951a99ed3d3a81a70d4847ed7cd6ce98a5d2c3aa6840c4. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7db942b8-ac6e-413a-b14e-0ca0d39a977d.json and https://artists.proofprofile.net/proofs/artist/7db942b8-ac6e-413a-b14e-0ca0d39a977d.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 0x9abca3bdbfa8548b6a0199b4ba8d43ce4a7e6c7ff41531abc52212b091018094. 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/USHM21812901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b76e31b79d6ee82058567d654657ac2dd027ed2a1d0b07772f57d9d965c39ed. 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/USHM21812902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d8ed2f5f67c6c742c6882a0c4631aa9bb590c2c4fae26e04d26b296513d842. 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/USHM21812903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc84db508fda41bed0ea26cfa022415c372dcf3d772dbc60279d299a3d86d9a. 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/USHM21812904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5efb35405975298dab81f9a9d50abe81052796025d8a678de2458355549c5c8. 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/USHM21812905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0740030b838a8d9b69f3943198267e0a9749b681f99e187c6a28e4f1da59686b. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM21812906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e5a29d9bc7c8146921365162a543e6923196ab2599bcb8807fc2d1d59cd5f1. 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/USHM21812907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1fa62f56c9fae4f6b41ba62a87b0de00e8c3a9878d11f64949369ca833b5ee. 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/USHM21812908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235705b4d73caec64ce762f1622c8a961a099ce65be020db49a9ef7b607862a9. 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/KRB471800981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2691741d793928263bf1f171e6df203d550035ff4b453e89c20949cfd3140ea. 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/KRB471800982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6da1e1fdeebd0f37d99e4ec5210a3fe9763c03b3d484e2d3470a4190bd555e. 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/KRB471800983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae0b6d9f48b56189c60859bfcf1b559f8f525be11fcc11c966d399d7d318014. 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/KRB471800984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe496d125528e8856c72a1c6207621dad1e5b22893649286aa4d7ab5665d94169. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/KRMIM1921923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe34b2804d7a447c438384d322ce5cea68572daf53eec1acf0e9b1eaad1662ed. 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/KRMIM1914156.
Alright (feat. FR:EDEN, DOSHi, Zesty, Lemma & Od Rhomp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4fced2b1c0c893845115091bcf78d95b99bc44418492fafeeda2c27b9cfe62. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZEKE1861747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90ecc2448d20257c451c1459830c5d64b8e6069c09332bbb7bae9a98e90c8fc. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/KRB471900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e98d66dbe4630a10dca1f20ed9e9a545fb124f8097ddd836c2b42ea355bd6c. 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/KRB471801543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c55683707385c8409aaa184dffdbdfbcc0b558f0ae31c655fde877e9bf7776. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/KRB471801544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa50f9443a9cbb003ba0e2e0445286165d6b2908589f0461c24287bda04c7d. 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/KRB471800417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945ba4a9ac7e33bb7d5fdc1b348051872fbb0d47e7ef8d7a0136e3d80f73f6df. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRB471702065.
Guitar, Fire and You (feat. FYVE & Pasannabe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6772a063320fd14219af4a22d6c186ba2ccc28d2b9eb53526423465424e6b409. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRMIM2203172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c725aa4fde5361382be29762aa3f9b7a2f1806cb35d78ff3c3105dce2bbe3ae. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/KRMIM2203173.
Goodbye (feat. Ji.na, seizetheday, BOiTELLO & Occur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fe86dc63a661bc00b6c8aa54d1d3bb860551606fe23602556b0127e3ecba1c. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/KRMIM2203174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3bbacd21266410b34b0894f72d0dd901cdfebe401b6cfb8cff1f82fee26544. 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/KRMIM2203175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29aee359e1b6b26458b87e2eba71c0ff5781e4f3358ad1fa2198d600905c3a67. 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/KRA382005409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109494877995f4481f7889ce35d70bea957927b7128814c159fc3b11da2ce82a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KRA382005410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb585b7a2243badb110992b4e248e71222de0cd12f7fdaf71c519e079ad9266a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/KRA382005411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c891ddd594e1d2a4265e71308ef38b3fbdf723dfbef59a2b0c227e60ff1b89d. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/KRZ291930183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40de09d32f1d544f9553ffc317ff43d633d835ed25a45c62562a4c904c64e57d. 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/KRZ291930184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbeaddc7535d30dae622beae7937d0dd0bc416bb291aec4cf24f04d60efb083. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KRZ291930185.
Look At The Clouds In The Sky (Feat. FR:EDEN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b744868b979f5ed03f29d5dbb9335f5caa78a9a2bd0678509b783022c9c3c6. 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/KRMIM1904465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcb91fd7be4b57027ce215b3a5ebb8ff496728971966cab9b41b86acf51b58d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/KRMIM1904468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae2a06d0bbedc48007a0e4dc5a5d888ce62b2160d5e0869850f9d861f17959d. 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/KRMIM1904469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33971e9b83e7030c509471adf3d796ed658054b3cfb3f3805c165f405d37e86e. 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/KRMIM1916359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03367c43da549314fbb8a2c01a2ccff1eb813a7141d5c1aa7226a0e80861b8b9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZEKE1863147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2ac60d90cd7f6559d63c67b1337c1e1a578a60db485bc3e46750ae388f258d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/KRA341766078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dab5237ba489c68ca91c1e4a7e61d5eb6aecf946a2462373f6c358d8d8522f. 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/KRMIM2013663.
Precarious (Feat. Rovv, BOiTELLO, Holynn)
Electrical, Electronics, Computer Engineering and Music