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 0xa68a70fd5aa4c1502ff0ba3e46136d6de07d45498c4b614fa69d7a6c00b1d741. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6003acd-f22a-4b82-8b0c-f05ec32fb6f0.json and https://artists.proofprofile.net/proofs/artist/f6003acd-f22a-4b82-8b0c-f05ec32fb6f0.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 0x38372177f313d7e78fe11092985e3d087a661d435dc410309f7b97e13c652331. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FXQ292400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5a3f4131389a23a37acebecad4bb5f45e321e89736a10d84defff8226b1ea8. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/FXQ292400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f82478141d7eebeb872498d554e6cfc5d1fe64b162cf36a9c93d9e3108313a5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FXQ292400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f11da63761e7815dfa0819c761a5a5c7f4486d574a6ae357f7e8f88df18f81. 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/FXQ292400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26943141a0a1aaa09cbafc00993c83455defd02229bb7ee2b75e2d4fcb4c81ac. 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/FXQ292400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f036df1a76de044c7a560fab2eb15ee4b3fbe06cca46477c60a1a07f1cd613b. 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/FXQ292400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1975f145bf831c53fa1f6b82f4ccdc7cfb6af2f445dd0ac9c6526c4caac45456. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/FXQ292400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6088efc1e704ac7b4af0081ba26e7d0aba79dc3aa400cdb3a5658f9289d714c. 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/FXQ292400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d4570c84ea9a04fc530108fad4d72f8c7b87696403a799b94c007d797ec8ca. 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/FXQ292400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d3ceeeebea082a953dd8c5b852a1b3988b3ec86a0b0e8a48a80638f885d042. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FXQ292400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95284d0e7d8b56a0516a1db292ec8a830a89cd3805d41d5a232423bc44bf9acf. 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/FXQ291800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d1a5d13d21717aa5709233616102138d0cd3df3dfdc9500709124eb8941cd5. 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/FXQ291800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bc15dcd5c2d0d700d8ce30c0a53750be90d65da5124a4c3787dc3a025f7bcb. 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/FXQ291800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73fa20f25e1cdef76aaf102d0e43f857a3ce318f6abfe5332f2d8e2dd8e02a6. 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/FXQ291800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e5e41223a9721527c3e33ff897e10184d9307ac6a1cb5a29e6839ab4701a6. 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/FXQ291800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d3ecbe78974f0f30d60ea51c1ec0018c90df2a43d4fbce18ba5a58d60625a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FR9W11708918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026df08b82711bb6cbe8321f2fcb10fa8d76511dd1952e698e543c4e09ca77bc. 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/FR9W11708919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b8fbb64cce0318aceaf0b30dee5a59361734f5a77e4dcc05d1b428d6777857. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR9W11708920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec96016fe2e582c92ad62744a12d38f9f0d5e2cfe0fca18b903c76c830c9ff3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR9W11708921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee5a49d6de504e768d9f56bf854b2c4f2d00bd861149c1643ef239f289c9fa. 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/FR9W11708923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf85252f9b358df2b92f9dc5cc0bc23ac836abf2a330c60e7341c09b907d28a3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR9W11708924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d25cb86609d5574b6b3056b9b474639f1248659d32930a0a9f57f10f2cb61fe. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FR9W11708925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516ba88e148b9c1991f9e92e035769011800d43e874bd6661b51c4088ddc7236. 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/FR9W11708927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdda61936b25d9e5578615d9f873843ab0460f9473d37a83be8dc17df5b7bff3. 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/FR9W11708928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62836b967c47a9a61915a591944fdb5e08650ff933b668f17dc0bba737fa96aa. 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/BES461200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c4d5f5afb58f3a7bd2147d8f8e29ab0197520f12592c197a6b6912fa96316c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BES461200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f85215dafa1b4ebba59780954ba671e871d904988578130c157c84cfecd0181. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BES461200003.
You And Me VS Belgian Rock - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91d276af18da5ee6fd64d730b5ddc0019529dd78882b95a10f98125a71117da. 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/BES461200004.