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 0x3b0b5b67336a0d98c5cff56eab73c6924336e9ecfdc1277aa3472565e8407c1b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60d82ade-c48e-4183-98ed-bc77abe17791.json and https://artists.proofprofile.net/proofs/artist/60d82ade-c48e-4183-98ed-bc77abe17791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thinking Blue: Relaxing Music for Quiet Times
Perchance to Dream Lullabies for you and your baby
Wish Star II: Music for Inner Space Travel
In a Black and White Mood: Piano Music for Whatever Your Mood
Quietly, In This Moment Lo-Fi Piano, Strings
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 0x22ed7d80392cf43e7a9839489d82732525f684cb1f0400e90ac369c8f47f34c2. 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/US5PF1400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29060e71d06f9753efce70ab26df4f314831faa660476652ca7a9b0c723c0717. 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/US5PF1400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98119364dc987e7536219abf70557e9bc0bd54a32ea93223668463716067205d. 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/US5PF1400057.
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 0x104cd168e28f2089c8dfc1e870f346a32bca84c9a038f8b1eda12482aeb4ee7d. 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/US5PF1200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484d594d1cad8dda1987ac760b3e0d3ee274ec97a1a6c53ee50ee0c6e21a4d1c. 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/US5PF1200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891273decd26328d309334d14887d286666bc0e4ec1606a3fae23198065b9891. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US5PF1200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973de70d5261adb7e0da5e7da83c803b624d6faff2721e55e353cbaf6daa73d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/US5PF1200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e67ad72860e3712f676a4de1a608d9f3056629a1ee8bf41fae1bdba97aa0585. 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/US5PF1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff4811b99b66f4c1149435d9a05b29654fd4cc27ff3cfb5b05b1ba505bba684. 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/US5PF1200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487d169ecea09546140079a7c48a9aa7935a4991f5384e2a3582f2e57f0e8c0c. 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/US5PF1200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b88137875408e0409febacff4400782ace0e2343f53a717063594da85a93dd. 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/US5PF1200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a16322d0bc9b80fac3619c028cd3c022e55ec193aa3906244b5fe9daed0fa7. 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/US5PF1200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdb66c235473598d7bcbdf41104ab96a6854f70f6928e27160f1068fc5fa7ac. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US5PF1200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdc0c8a69b01991f1b008131f8d9a1f11d3f9350ffadbb9156199c23841ea06. 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/US5PF1200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b60bf1126aea17829f57dd786832b3d90c586d3be7f330cd422229158f8bd0b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/US5PF1200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405ecdf77d17a7a2823644cfd98fd8c78ac541e38a4a4737990cc7921c452054. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/US5PF1200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d3269b1df46e17f296d3d01d0f3c90b6aaedee0e7d4faa130f06a0beea44e3. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/US5PF1200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d89b5c4f74e5efd3de9f2db85162ebda6c1852d80f43c98621b1062c0956aef. 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/US5PF1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa3474201b637bbf98494e32ba685ff677f52ee847a46845fc9875cdc7e206. 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/USCGH0765795.