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 0x13d61b5f3487e7f7605057e0c6812ca6e0ff017ba58b9fe38b6285b6114cd356. 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/2df9329a-a9e9-4f25-ab7d-b8ac87dacec5.json and https://artists.proofprofile.net/proofs/artist/2df9329a-a9e9-4f25-ab7d-b8ac87dacec5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classic Turn Left Turn Right Two-String Bowed (Arr. for Piano, Strings and Two-Strings Bowed Instrument)
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 0xe3da5511df48e0ea1f12edf19f125d112014a9a1b4dda6aa9112796d58c309c9. 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/TWAA71400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a2900d7b08b9a27312758961e1c68e936c2f1d88658f1f516d2145aa9e38c0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:34:30Z), 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/TWAA71400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83645527975fffb9df66da93dc3020a4d070940dcf8458589165e3867a218b0e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TWAA71400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d99e3f75c657a896b0cfbb202eb1af8def932d7ac5785969fa9f6f065275f2d. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TWAA71400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695e8252ee88fa1c16bd2a66614533161519bec158b6676fc00cbbddf8a70d17. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TWAA71400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f08fc0bdbc661a26e19c0b4918e45b4673fe46a3cfa1799f5c6d557136dac20. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TWAA71400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ace57f76afeadbb8e7174e8cfeddd74ce146521300e01b861595f511c87db. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:43Z), 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/TWAA71400125.
快樂寶貝搖籃曲, Vol. 3 (幼兒啟蒙成長系列)
快樂寶貝搖籃曲, Vol. 2 (幼兒啟蒙成長系列)
快樂寶貝搖籃曲, Vol. 4 (幼兒啟蒙成長系列)
Best of Lullabies for Baby, Vol. 1 (幼兒啟蒙成長系列)
Happy to Learning: Class of Taiwanese Language (1)
Happy to Learning: Class of Taiwanese Language (2)
Happy School: Fun English with Your Kids, Vol. 4
Happy School: Fun English with Your Kids, Vol. 8
Happy School: Fun English with Your Kids, Vol. 1
Happy School: Fun English with Your Kids, Vol. 9
Happy School: Fun English with Your Kids, Vol. 11
Happy School: Fun English with Your Kids, Vol. 12
Happy School: Fun English with Your Kids, Vol. 6
Happy School: Fun English with Your Kids, Vol. 5
Happy School: Fun English with Your Kids, Vol. 10
Happy School: Fun English with Your Kids, Vol. 3
Happy School: Fun English with Your Kids, Vol. 7
Happy School: Fun English with Your Kids, Vol. 2
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 2
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 10
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 7
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 4
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 6
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 8
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 5
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 3
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 1
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 11
Open My Fairy Tale Gift Box: World Famous Collection, Vol. 9
出神入化: 國寶級大師國樂演奏精選第陸輯 (笛子獨奏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb775b87658874a53f27c5eabc958e147398d3eafa58f635e0af14e193629be. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TWAA71501574.
出神入化: 國寶級大師國樂演奏精選第壹輯 (江南絲竹)
出神入化: 國寶級大師國樂演奏精選第拾輯 (古琴精粹)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1958858250212483931fdd446cdad34ea6614e783b480dfc600a91513e742762. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TWAA71501613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fb00a8facd1b3d7ff9c2280ec915cde064b4d49b082f1a76f6ca9191f32e56. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TWAA71501614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661fbd0241fb65d11f2fbf050002fd7e4dcb0dfd6e8317528d95b5cbed330068. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWAA71501615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd844c489a7be5cec2eebf5d2d3d6da33428590ad05ae853e336fe2cd29801883. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TWAA71501616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6ea566cbfd52e26d78e49fb1ae00bbb4c4e9c6c89d9df80118355ad7bc1d9d. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TWAA71501617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78db04a1f440da3685bbcb6872ca71acbfb3b242ec7ea44acdbafa335be85118. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TWAA71501618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38489b609dce9f6de751dfabb360fb8206c811be95fa3946f110dc7b31553393. 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/TWAA71501619.
出神入化: 國寶級大師國樂演奏精選第參輯 (南派古箏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb0f72b92940623779a57ad9d74a4537a3765d167f56f080cbb7a138893f268. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TWAA71501547.
出神入化: 國寶級大師國樂演奏精選第捌輯 (管子獨奏)
出神入化:國寶級大師國樂演奏精選第伍輯 (琵琶精粹)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2652570d3aae60e85cbf5533b8506e8dd84932694c7cd5c3842f2977c4f30a8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TWAA71501566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15181eac2cbabb53d0879a441ca556cb7b307dcfdb20d84535f1502667e9575a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TWAA71501567.
出神入化: 國寶級大師國樂演奏精選第柒輯 (笙獨奏)
出神入化:國寶級大師國樂演奏精選第貳輯 (二胡獨奏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52c5de9c319e0c2f12b8d19132797eb75cbfbbcf2b9886f20907fede6e5b0ef. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TWAA71501536.
出神入化: 國寶級大師國樂演奏精選第玖輯 (嗩吶獨奏)
出神入化: 國寶級大師國樂演奏精選第肆輯 (北派古箏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474b86dd13ace674f124e45f2f74cc304d6f9838da055eeab8ebb4239e2ca581. 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/TWAA71500262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48abfb76300bc2c572d70e79020bbf859f94649ce5c24470243af7dd594116cf. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:40:55Z), 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/TWAA71500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043d48a916b4b95a6b91b7bac718ce30c6ba327967694d719c6266c3a8683a0c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWAA71500153.
黃梅調禪唱: 春有百花開‧觀音自在心