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 0xa419415eeb221720e201fb6ee7312af82dcca0c243ca17c859ccb9d8255c5385. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/808df15f-791d-46a4-b2ed-b8956a1ebfc0.json and https://artists.proofprofile.net/proofs/artist/808df15f-791d-46a4-b2ed-b8956a1ebfc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Coral Reef - Sixthsense, Andrew Frenir & DTALM Remix
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 0x8bd32aaaf27d9870dd6a3732c3adc0a0a393a6dd4ea4f0fabe85455eced5e005. 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/US83Z2147591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811c298ba0f85235ff7f7716429f6b3e709afe003da330050de53a58f6c206fa. 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/US83Z2147595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ab00e6365645c7b6ec31070503ef68d966dc7657ff29f623175a62aeb12b53. 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/US83Z2147588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2cf14ceaf181b73770d108ae7dff92a2ff8d906b8ab685ab697bc023ddac18. 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/US83Z2147586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d80fbaec16114f622070c70cc55e76bea71f64111f3ecac2888d7d922d9fc5f. 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/US83Z2147584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d718141c3bcd02e865f08c2a61e07301009362280fd90f8a865aaf6d62cbe. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/US83Z2147582.
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 0x9fe7001fbd53c4cef31700074d28efa70dbfd908ab5958785af122a26a9db0fe. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US83Z2147593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11da48c80c24e630b1b6dfb5d252ff74820cbe1304237f40769fbdae8ce9c5c2. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/US83Z2147583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0957e76b801b7674e467029584e68bf146c24e38bed1a8122289fcc8ae8a7a5d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US83Z2147581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c2e1728c2b3c1183b69c3e7d312445bef014a2fcb04b492ca4d60b4ddf200b. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/US83Z2147594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a700ffb73f64b2d75b4053cf050f6038814914d05dada341379ea246c495a37. 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/US83Z2147580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5d973f1c39662d8d53eb1eb16317bc6c936c1dfb689bbf723425daf64e3ab6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US83Z2147589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa60f56efcedb0bb7978207f69a089ab41cae386146c55b2b603447ba6ea7679. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US83Z2147590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758024eb4f2711622f2020aaf029acc9e1cc3415a53c5458024b3dffdb7f825f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US83Z2147592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e87be005f1de398699f89c751936a6553c83d3b13f3a23a5686977cf129f68. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US83Z2147587.
As Time Goes By - Cloudcage 'Dawning' Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df31f91bce2a3999b243987b16b839f8a40337b2df84ab10d050972b8a4e715. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2147585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030eee499e439a02b69db73d6b8d7513e876a8f3babd94b1bcd45763a802b9ff. 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/UKU932510001.
Daydreaming - Furkan Senol 'Dreamer' Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7007a536e0140f358152efe59883aa6855496e5f8c2dd39031ecf53965fd881. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/US83Z2547079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b5d1490bcc2ee260bb77f297f11ef6d03b29b62dab472165dfdb3a633bd172. 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/US83Z2109146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143f3279d03ba91da2ffaa97dcf2f848849b8f6c54a07dde6d141ac33077cf9b. 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/US83Z2026366.