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 0x25c94f6a6a5dbd6d7860c36f105f98a44c6c20f0a15dca0f8403bcb3f7df2b1a. 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/fa22236a-855d-438e-89f0-af833be2aaf4.json and https://artists.proofprofile.net/proofs/artist/fa22236a-855d-438e-89f0-af833be2aaf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Didn't Deserve Your Beauty and Your Love
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 0x91d21cbea6bdab970fea0ebfcc877fe927e62c02c3ae12c45ccf90c23fe58b1b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZFYW2060076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b0667b46559c6f91596c7df50798b3913d64a06830d7acda5b39235e99a453. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:29:13Z), 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/QZES92045899.
A Mother's Love (Memories of a Childhood)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a127915bd6110ccfffdf9791646316e98d78a908bc016aac3f0d4adf912728. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHN52061884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1140b818a8c5f989d840015c986474882820267233ec708f8e4d60960ca229c3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHNB2138324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7237f5a74e6ea02df419348bedf4538101bea3fdb2ac2271fa0167c4934caf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHNB2138325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9854296f348a21f93c0ad2acad4b6b94b922c752150e75bac653cf1aeead3663. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:18Z), 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/QZHNB2138329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd2f799785b99dc5fb8108f6b177e438a5be6d28c4081fa0119542bd7c68e23. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHNB2138331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be57b35958c3228c53e11a105bae307e39483efd1f37747c66f8ada4eebc60d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHNB2138333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd182538a0e30e73bf462ec274ef48b36986b57b392438a974fa7681d3869a8a0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZNWV2167364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f4b6e409c04cb54ea07c3699c4335b1883486e3b3fb26450087e36624ad97b. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/QZFYZ2235990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6970a0f9ad5f9287f01ebfa9de8292b2ca2673ddad0f63b85d4d733470534. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZMEQ2016615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928af7a02ace3f7bed986c57110aeb37256f23459e22fb430b446083ab748e3c. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/QZFYZ2235992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbd9c4051a2a8f2755b18fa0ef29c863fd0840e584540b0075498c0f4203e71. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZFYZ2235993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7173dff34560cd5a6f17f4c94452f6f61b7cf21e11ec0b96ec7dbfe34278962. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:30Z), 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/QZFYZ2235995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b86e2699f4f75c3db08010044605a0f363bfc9c01c749696649af145d4ca08. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZFYZ2235996.
He Doesn't Deserve Your Beauty And Your Love (But Neither Did I)
Hopes and Dreams (Memories of a Childhood)
Toss A Coin To Your Witcher (Reimagined)