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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf16f4e6678bcddabddf4efdbab15cb17eb95eb33191d590dc87023c23d21b8b. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd94eb3c-e687-4ad2-ad31-cc16d83d4ad6.json and https://artists.proofprofile.net/proofs/artist/fd94eb3c-e687-4ad2-ad31-cc16d83d4ad6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dc8b473c0e1c6264b33fe428f68b54e28bde1618fdd4bdc8d8382b81c3b435. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEHM81800597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c64df0d73bc1a66efc1429293583d16b1b8ab10b4d1b961ed3a4193d7b30bfd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEHM81800598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0528b5056eb0d8e78a005afe72bd3a3eb30c01dc3b6c5b7b078f6d01bf852f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEHM81800599.
Morning Darling - The Invisible People Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda45f6b1717d18a5736d0e6f9466ec47906b12aeafe3617e6b9cc71a50c45fa5. 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/DEHM81800600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dccc745cddcfe98055954c6a5fb0f7a0a89c5fade54b9dc22fbd8e7aa93ecac. 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/DEHM81800596.
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 0x8d040a63024f81d3745c5f93d81f17cf609611dc5ebf4c25bd1df16cdfb21657. 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/US83Z1794966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfc8464095776dc255c52dc01432cc1ddc727e153e6a961f997b4c1f39c0bfc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z1794967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef364246e542138d05f10712b2c09ca21b188fc0ed65382707766be46566a32. 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/US83Z1773105.
Sabilu feat. Mian - Bernstein's Love Layer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a83512df8abd980007bb606db79010081b09da933cb0a231119b615b19162. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z1773104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877f5ace8234fd147765d46692d0e64c053b2637c21d3896901e99cf4028081d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US83Z1773103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9cc12455b5d607c9c749fc00c0c0834cd39c93712e4e0c6efe045461fa9ddf. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z1658372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1828711b6cf99762fc37e1df3d1121a39177bd469829000f29497a0b6578c08. 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/US83Z1658373.
Sabilu featuring Mian - Mira & Christopher Schwarzwalder Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746f9f094b2ed6816fb200e3e2645ab3f318f75cbda3876712a823a86ea5fa13. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z1658374.
Sabilu featuring Mian - Schon Long Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf728d4ce6b69e7249af82e6d9e7ba89e76f787a74729c51546695f02b1b3b50f. 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/US83Z1658375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde44ec84d46baf55d98258e0a1673928ddd23c6fcd723b980a2bbc8e69b9ebe9. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z1527920.
Alhambra featuring Dirtwire - Nico Stojan's 122 Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc35e71435847b93c46a73838432fb6761961d708c245b63ceef099c85bbdfb2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z1527923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe463a9d2de75859b98bd1222c25793105d4cc6c6a70c3f8ca8236c2770c8c1f5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/US83Z1527921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3fb5ccbfb2ef11468c3ca6e767f9961a3d39d06bf7182adfc845fe8146fb49. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBL60638605.