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 0x8bbf3385ce2d9d19f69b25e30ae76ef3ca223dce7bee8a442ca552fcecf561fb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ba62454-fefa-4f13-9617-2be32944b21d.json and https://artists.proofprofile.net/proofs/artist/5ba62454-fefa-4f13-9617-2be32944b21d.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 0x088174752a2f81afdcea678e01ec9fe2f73632a43d7d24e49532aa3aa9b293d6. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/NLS241500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b5a5f98612e6075a104b2976d499742ff26675bbaa32c8219e1cdb9bdd8110. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/NLDD61600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7670bc78a72fe1bcbe2bd69f21c09b49229db5f2069cb44476888e92e3e9f2e7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USLZJ1699948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff3de092219f28f7f78e5884db06ebf3c8d726d43cc093c9935c85a043fff30. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLDD61900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e0284f6bc0e1e111f8a48ef0e674fde71452690eb6cd8938867c478eaecc9c. 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/NLM5S1900604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d2c8a09ece9b4f93c91dac7e22cabd5848d6a5f641d3d0032dc1dc0cf3dcde. 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/NLM5S2000796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950f2cf0d05682a153ca70ad068c4bb48f8aea88db202d2920427a46d0ef037a. 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/NLM5S2000874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ce0165dea85da213435ce9d0c5bead56a6e3094685b0cb64b5e50c72eece0. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:27Z), 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/NLF712101559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ae340d35395882a0cc21189f01b2a425857fbfea0632bd7a1e0494c68de3f5. 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/GB28K1820005.
Dusk Till Dawn (feat. Sia) - Brooks Remix
Dusk Till Dawn (The Remixes) (feat. Sia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa353ca36c315a84aec57a08a3946548534cf40588fc94e3602c1199fce8c0280. 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/USRC11702592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ae340d35395882a0cc21189f01b2a425857fbfea0632bd7a1e0494c68de3f5. 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/GB28K1820005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826f248a91402c2f5563d49212790e46990d881dcbf37674f4e73979daf179c4. 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/NLM5S2201659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f5ffc18aef5ef278d870b92057f7df36140672906de52709e67257e6bb0bd. 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/UKWLG2200066.
I’m Good (Blue) [The Complete Collection]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f5ffc18aef5ef278d870b92057f7df36140672906de52709e67257e6bb0bd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKWLG2200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a31cdb4fb1c042254f0ca2d6a0f5207ff876b8727c53560d59333a12f83b11c. 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/UKWLG2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a31cdb4fb1c042254f0ca2d6a0f5207ff876b8727c53560d59333a12f83b11c. 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/UKWLG2200067.
Don't Leave Me Now - Brooks Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f90fa0685cc8a2d0d7bd5cedab8bb30c5166d1e17ee2410b96f9bf5c17aa66. 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/NLF712101560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33184727c3d7e561d0feb1cc5469549cb9ec6637234c3f3a03249f25a979ff63. 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/NLDD61700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc92eef537aa972beaa334def96c5bf648b202b12e08eb0d2be30043f3b09ac. 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/GB28K1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5204791af2295e5647f55af798a4de98a9377b40849998b1204e942d3c039e2. 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/GB28K1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8c38b75236a2badbd4f9377b9d64fb4c6e84ac1e6212fa0a12c160bf2d2019. 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/SEUM72200798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf892b11ad8c7f8883564993ae1444d0ce1834d87871018a38a5a39d79988e5c. 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/NLM5S2001103.