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 0x927480ef5bbbf9b17afa5d9a077ff6570030fdabb5a6c7138243e8c4579a200b. 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/828da9f2-63b5-46e6-af9e-608e252c6eb6.json and https://artists.proofprofile.net/proofs/artist/828da9f2-63b5-46e6-af9e-608e252c6eb6.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 0x2b7e7e48fb8baff0594644b15311365f7a8afe8415f32770e5a8757279b4dec3. 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/GBWUL1930599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa6bd82b2713a03d6bd2b36d97e9d12bf36f668643d22080562db63dad9aec0. 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/BXD2C2000025.
When We Were Young (Illusionize My Good Times Remix)
When We Were Young - Illusionize My Good Times Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff466da78dbc1f239beb35758f09ea887228a2e6bf945c9c97b0a471b3459e8b. 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/BXD2C2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01be51304202dce5704040b4b78bc70eb40b1c640ab14c98e1eaf135e3ad202a. 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/BXD2C1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba33d59bd7dc5b9096497279db072a64a5db9d2da56e9904963270a20b7d337. 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/BXD2C1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71010b2ae50c01153d557668f050768638a048cd0d741c33735b8f882f401105. 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/BXD2C1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb08571d707d08c6b1ec907228ea52985fc800f42defd36949e3fab838149f8. 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/BXD2C2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0855938c0fbb79e8b4362409220ac411ea8e415e5cfbb4efadc1ae440b56f302. 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/DEU671401491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ec76b455178323e5e87b4d5b9487c3c80530ca32a3246be0eb390be13ec4ed. 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/DEU671401492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ece4bea144cead7a337150586448a9e676a8ae063271542f51f08efecacba94. 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/DEU671401542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb269ef4c1b0cf1e3537ef48c04786886c381a2fb6bbdafbd5563c64c54429dc. 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/DEU671401495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4935c4bf599cd47161f997304e1362080c26672f1ed1f58ad897edb7ebf65124. 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/DEU671401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf28dffafb605d6326a1b2567ba7370448fdad68a2cd14c8959cc89b9e0117b5. 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/DEU671401501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d84526c8a047a18a6c0722f78e918f765e95e70969dcc763c2cdc46598ab70. 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/BX1K42300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d84526c8a047a18a6c0722f78e918f765e95e70969dcc763c2cdc46598ab70. 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/BX1K42300008.
When We Were Young (L_cio Reverse Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff466da78dbc1f239beb35758f09ea887228a2e6bf945c9c97b0a471b3459e8b. 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/BXD2C2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71010b2ae50c01153d557668f050768638a048cd0d741c33735b8f882f401105. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXD2C1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba33d59bd7dc5b9096497279db072a64a5db9d2da56e9904963270a20b7d337. 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/BXD2C1800015.
Work It Out (Vintage Culture Late Night Remix)
Work It Out - Vintage Culture Late Night Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6115c756debef2ce9ebe90233c4931f3c4eaaea61b8209e4df79fc7907e6baf0. 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/BXD2C1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f7b2f6016d263e41820b141168b48959df6fb2591ab08305819c12f9970eca. 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/BXD2C1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68614c2e54fd9c33f04e249583f5ace025d89505a1227f34f67b0c669ae94f7. 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/BRRGE1700198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21a6d315a782697e41363e90cde0ca858dee03b912b8993fb5bd763f445b435. 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/DEU671602791.
She Knows - Mark Lower & Man of Goodwill Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf799111f799355281616f54d51938424adc0f44d0f199684adc4561bd47fb417. 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/DEU671601947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44411a44d5a6109c5a0adbafe96c10fc7064fcba6325b11a594360e40cd9db38. 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/DEU671401794.