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 0x7709cf175dde4eefca9ac0f3028d81d305cfee99bff755a7ed6f8c2406ba9881. 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/7c398c07-7d44-4263-8ed4-3c1dddbf0570.json and https://artists.proofprofile.net/proofs/artist/7c398c07-7d44-4263-8ed4-3c1dddbf0570.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 0xcfcc11a28ce80de1ad5b564dc4d531432a5179e376a0a623c0b8edfd4328433b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UKLNW1900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a04b587848405d3b898a3a2b6b59e7262a311e0184ca7846de1d22c05ea88b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBUD71500181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a91fe048226a2b92678168ad6ce5c1002e43577ed00dc9ab640150384b0f41. 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/GBUD71500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea65dbe7f6967a5baef17ca923ab6c38657f968af97533bc8f65215469ff2366. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GBUD71500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f7e14133d47eb4dcd0868f7e56eaf130387376cde45142fb21c0aaed714920. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX202035859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b335163a530958568078e502fe774557e442763889313750deab6392594914b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FRX202035860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7fac6ffd1812038870cd1b191b6ca6f872be896a2de032c2a38b8c8166a74e. 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/UK2VX2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b94f8f7673004c0aeb313b562b525cdc37623b9d14a2497846f331e11f862ab. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX452165262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0834457178024eab9a04aed01b719f0a9ef9b1101fbeca4b0ad0371a52633d. 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/FRX452165266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6bdf984ac80101df6afd79054434640fb32de68ff76f51dd67bc9febfb1e8f. 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/FRX282182568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fdf10f351e60c1551ebcdd27dd7c64b3c447d4ef2468a5f4a6a0e9885831bf. 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/FRX452165267.
Soared Straight Through Me - Midland Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c3b2fbc8276fc89e9086416c36f84cbd7db2f536c42371f8f0b2ce81a4e9b9. 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/FR10S2258977.
Soared Straight Through Me (Midland Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ec89e4a6beb3150d8103794fdd7f9ab817b4f86dae47c8b35f5262c3971374. 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/FR2X42263924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da7cd5f44c9ac626f94ca3dbdcf8669b8b802d94cc3a669f57557bd89c3d248. 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/GBRKQ2316137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2df00af4321303b7b2d1ce041bbf6f3bcabfcd58969831039f19a535036f6. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/US2J72315703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2df00af4321303b7b2d1ce041bbf6f3bcabfcd58969831039f19a535036f6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US2J72315703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356a247993d55e716901974b0922b9957a32fe1b78c005082d721a2d57f69b1a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US2J72315701.
Clarity (feat. Lucky Daye) - Tom VR Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163dadcb823fcb0209e1add959ade28359b0c1c17334dc03f193855c542f9cb3. 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/QMJMT2305088.
Soared Straight through me - Kareem Ali Remix Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8662aeac4d97a6717d51a08ce5323406f713eab404c76d454a23c78c25a95902. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBEXH2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd938e09fab6ebe96629d2681945b7b9a5a7c51cd1a04469fb8c9836f49c103f0. 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/GBLV62210419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f27e8c3beda4ead6f91fe9aa807c96d9ec4d828abc767fb8828f070e867bc58. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/UK2VX1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e550dc0851d19276907d8540d344a9073e88b04ac8c45f57d73cc2158dd6827. 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/UKS9D1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898232a42f596d2feec6a9cdb7b9b6c4f1e594a55550a34e99a11688bd5ca1b0. 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/DEG932303485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b60f8fc539c20a849d830729bcd0cb4e6a10facdb01187ff7bdadfd9d234e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBHLW2401901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9a58761c70a590451cc47990b5f423371ec681d85a49f1b4493b6125cd62ab. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTRX2345219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d5c861168f057f21276f43d1c0bc78a9ff70fe44d240da493c9c7aff15df7f. 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/QMBZ92331791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685b53cd3bb489c61093c899bf27058401271179c6a9280ce9be8dde41dab6b. 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/GBEXH2500063.