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 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 0x9285d5ae145f8b3400e4ec43f89f272ee1670e8e727803eabdc06df47b6c19dd. 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/e0f523b6-fccf-4031-beb5-e07ba00aae4b.json and https://artists.proofprofile.net/proofs/artist/e0f523b6-fccf-4031-beb5-e07ba00aae4b.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 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 0xf7f7445b566a9f9097f7ea94fa57e334992987c7366e561b525b5674e54ece5d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGWW2090725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877650d50f948553c887eef8daa0343f165447cdb050402036f7427f3680622c. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZGWW2080630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060914cecf13b726d21148612172a8f8f98425758d015777ce3db5c4bb93326. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZGWW2133446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6e30427debec05f4dfbae2c500580aae3ff5cfa84603e5248a38aeb0660c62. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZGWW2133450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be32eefe2360253f5d7d6503d964de54d6b2b7120c6188e7f76b3a7da43c739. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGWX2118961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a97d4623b844693899eb51352ec78aa08a91c48b714c5c5501e8e57f1a613c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZGWX2130785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11be5919cd6bf558e18cf7eb213a81b3c503f61c4a0e3bbc5d263fc575d98989. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZGWX2130786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2b6af405109006e0fb8a5324db16f4b2bcd35ddef16ea6e210b33a5c6404b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZGWX2164761.
Lead the Way (From "Raya and the Last Dragon") [Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145bfeee5013297cad1d43b6174d6fe369d2a472b95ac79d77222a69337d18c2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBRKQ2124682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1728d17b2de8b8059a3cb2fa6c6f9c1207d08914044a209fd1888a5a137197a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBRKQ2143854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcae564449125146895d881fe420eaaafa2421480f871363f099b086f8c6d171. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBRKQ2181290.
Binary Sunset (from Star Wars A New Hope) - sleepy piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dac9d7c070d0809e23e8c5711b65cf6dd94624b5226fa6485a29991679e6d5. 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/QZPJ32251253.
Duel of Fates (from Star Wars A Phantom Menace) - sleepy piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9075c92879ed573bec27063e286ee788f427b52bc71877d85b726fab68044d8. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZPJ32251254.
Imperial March (from Star Wars A New Hope) - sleepy piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4a5809d935445a4f32dafe35a1881e2b8820bcdf95b9beed88afcd8ae5425e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPJ32251255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d96155fd586fe4d8055df1ea4708c8ae8c804c0d297ac2ac999c762e64876f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZPJ32251256.
Ask Me Why (A Mother's Love) from The Boy and the Heron
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2a6229b7a30bd0fe54ca4770463e9bbe3f00be3a58407884ceaa75793ba35c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUGBT2348051.
Love Theme (From 'Dune: Part Two') [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63eeeee915625f6081240025f9d36254137460cc23c1c5e4bae48604b58873e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/AUGBT2442291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327fb787c513cdba471fd25479ac94bb2afdd913692fd23d9b59f8b0e7b084e5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUGBT2490538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012b0ad641e73aa186901a10c398951444ba57a0500db4b8eea7ecedaa7be438. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/AUGBT2490539.