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 0x815021a079bc3e33238a3a3dcf9e004c360f05552ff2303e4e32b942f60f0150. 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/dc49775d-798d-424f-91aa-721fb0f6081e.json and https://artists.proofprofile.net/proofs/artist/dc49775d-798d-424f-91aa-721fb0f6081e.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 0x3dbcff0e83e8741be42484117a1f50d79c67a6c8f6b160e2bd45f0abca786a2b. 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/USFM91100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e08d0da945308204d5fdd5c65a3f5dc743c1ce102934a774d1c9e89269179d6. 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/AUUM71701256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbf5a18feda3f4d2c09116fee6112a9f40930a098c815c48779912be5700992. 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/GBUM71903153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b41681da925c42b8bc2d7af758baa5fbba58eb539338d6bee7e7c3ea82dd55d. 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/USUM71708095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb2ab118fa26a6b3693574e5697eefec572a4b00a0be523f2e965e5cd83de43. 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/USUM72101263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0f44e18a3627254dc11ccb892dbe5b5e2d13e9315526dcac212fa9a9ac7111. 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/USUG11901522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f05ff8f2bd8e44f0e939614d534d513663964fc82c38293573d9457b090c3. 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/USUM71921062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a07e8b8e2aa297167b7ffc6072dd177cbd238291ad63e66c948f123d8a9794b. 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/QM38F2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf194ce5c14030b57fb3dc34d648ac15a47fd928a77e38f6f499e08e66564a848. 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/QM38F2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71865b0a79521c29dbac4b24336f7121d9a715309fc44b8c8685729565eaa6c8. 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/QM38F2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bd2d5c2bed4eaed89dd1dd34bd300aff7f3fd1ee6f1baedd4d5ff1a5d0ce56. 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/QM38F2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf503812d3f7d7f3c41623d9181a8a0800353607b3a5e0cc320e00b049dd4d96. 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/QM38F2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11703d9aa4935062c8112647bad3475ca53e7ce55b905dcef28bc316ab9dc276. 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/QM38F2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5123ec2b3b81b05728ae67656bcf700fd1f68cae9f965d366bd56d760cbdd97. 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/QM38F2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf25411424a79c83be78a48d293c8589d13aaad7da624ad66b90f7ea81497bf. 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/QM38F2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11703d9aa4935062c8112647bad3475ca53e7ce55b905dcef28bc316ab9dc276. 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/QM38F2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71865b0a79521c29dbac4b24336f7121d9a715309fc44b8c8685729565eaa6c8. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM38F2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787b0d29e82e140c3cf0a66eda88d274c4e261d6f9baf0ca24a6b2e23b486419. 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/USUG12101721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c341491461b16078cee3cf91ff10f591068e79a365839dfee4e4b84d66cc27d. 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/USUG12101541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e543c4498ac668632bbbccccfdec86d4a22791e96609c982f4fe98225a2034. 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/USUG12001963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6eb92a7492e9feea91ca9c5f45c04d83eaf54272122c6d928ef3fa314fb0cd2. 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/USUG12001965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6651086fdc0be9311539fd119ae8c252539842cb836718ccb07287447214734. 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/USUG12000688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdea0219128ef6261a85dfb491c561127a1f4164fe87c824696f30894035f628. 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/USUG12001473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2edb43407cca129e38bc1cc60d5839cf528b48e320db87b4389377e1cb947d8. 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/USUG12001967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc515277783e330f41b0cb5fa4fd54d5890f38663e5f203a2d388241b27c137. 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/USUG12001968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdea0219128ef6261a85dfb491c561127a1f4164fe87c824696f30894035f628. 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/USUG12001473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6651086fdc0be9311539fd119ae8c252539842cb836718ccb07287447214734. 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/USUG12000688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d4ef5ce6112b2052b4c2fd17df95c4116be50adf7a4d070d95229273580d13. 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/USUM72012042.
Feel The WAV (feat. love-sadKID & Valentine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a00456aea408e2bfa91505cc0ae11cf20e268a7b50fb019a4808122b79525c2. 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/USUM72120607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ee1a2450f22582d1412fa5ca57c0cfe1c30752154a8f5e852a6d24bc730dc2. 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/USUM72015924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bb9a372246e4b73a04c104087d628247948247b02ed3c9c438af9f1a9e3542. 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/USUM72100957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c56159f4d183a76c43517dcd043183918bc759a41c78958f29435e9dad6f8a. 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/USUM72104899.
Some Type of Way (feat. Savage Ga$p, Salina Killa & Valentine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aaa16f321195d2625fd295933f7992e1b9635bd8e6ba79f7ae489cc7990ff4. 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/USUM72120611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f65e629bd2a171c521459d579d04c08ebf965a580f00f93c6f2788ebd0092b. 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/USUM72115276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecca144c0c2e31b66fdf0d4309b9cb394a19bb83e653548bea38b8a50b0a2d6. 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/USGA19649568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bb9a372246e4b73a04c104087d628247948247b02ed3c9c438af9f1a9e3542. 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/USUM72100957.