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 0x54e43bd936f54c348f4b7c43feab2c48d632ca22fb9b2af8b23ec6f6c86d09dc. 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/e0167ef2-dff8-4286-ae18-2ebe91ac8439.json and https://artists.proofprofile.net/proofs/artist/e0167ef2-dff8-4286-ae18-2ebe91ac8439.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b144246f1450259725faab989b495060cd69d5b6730d0128acf2d041dd122a. 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/TWE210603061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dafb3ed37593ea2f42d4adf77ca1b2f4f9de90cc9d56c5fefe7a2c301e955e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK970200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc2f94cf316f40ecc6f51d24fe54559a73b6f70a59f29b4e5cd4fb7ef90a7c. 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/TWA470807002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ac18fa61fd1ac1036e4402c291c37bc45a5253404b18988d3385e13ca3e76c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWA259900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959adf0445a8df8352ce1fb75bc7c9795c7570d5152e8f05e1c45819adb6c2c0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA470473007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e82542be0a05adc988a99cf5cc52cac4bac5ae386112897891b1bad41cae12b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAN79370007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187290af4117205bf06b0488e7d63fd9d1150d762327d6654cbcb99403591dc3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWA259700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03806cbebbbba6c256410156d3c6bc94dd47bb77a24d0f1bcec33fc1ff15eb74. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK970300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31f108044e1171f9cf150e03bcd74679e9628e70dd80292a09e59f6941bb7c0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWK970601201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb780966d7d9d4fbc3598da7f40dc5314bf7677421d642c155bf2804fbc8fa8d9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA470904001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa926bd148341b6245b3c3a2d07210c8ed6782235288938da866908edcb9b5619. 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/TWA470904004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ea450c9f22bb07e641e9d33076a2bffe2d62e01566e7422d2a110b051d56e9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWA470904006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fbdc7b4debc508ed3228613ead2728060b4c69ede23e35b1106dfed0d2408d. 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/TWA470904008.
星光第一棒 首張專屬 盧學叡同名專輯
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c03366d5dcfc242faa7af634f409e6fc820aabe3d4390d67f1f271baf05f45. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWA470727001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451cce180cda3e3d2b79f91804c448f07d0d9a2982d3615a80b408495422bdbd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWA470727002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b062330c0061d48574be91884187804ef0fa36c30e1463ea504bddc235db67e. 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/TWA470727005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3f24214b283e723e42b0b75b7126cdc9865acc778937cff2a16688f1e2a8f4. 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/TWA470727006.
愛的成名曲(早知道•愛+氧氣+愛很簡單+你不在)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e0ec75e7d7e7cbe10daf1f474ee0930a40a25643b076914b13a8c613c64fd. 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/TWA470727008.
小光 -《小光》主題曲 (同志音樂愛情故事系列)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e36edbfc43c91b88e7b758ce4818ae35024dd78e46298c75837a277f8cd9782. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC32108266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d60a4f9f1bf58d094418d28498e64268754a4089ce35446755ac169694f940. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TWU711904278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a9baf039132e0772f4dc869e639a253300d6e4f56e47e5b1bf2e7017d4e25. 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/TWBT71811001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ffa7610bf04401345d6a6018916860b903fb53c5c3e7842e5fccc76d2e5917. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWK230901802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97c72e7058e9e1a193aa1f254df6806a0d4cf6771267a8cd33471dba0eac212. 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/TWA470408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc575562e3437a2dfd8ecb288f1459934c43df193c23c1496220a069aa01f66f. 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/TWA470526002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27461cfca7b1c68ab09dd2db3d99ffabc5d7043544ebd8308cccb495c3af98f4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK230901808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700ff55c801e946c88ad6474a351aa16722d2f22b385517651ef083ec6df7a56. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWK770801003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b92ff5443409f12ac8cc14592886aa99c5a302e7a79b562b0b50d6fe697a44c. 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/TWA470441001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05909a2ab0acd1c8d7ef44aa965dbdc2008579972ce03522c71f6c1f1e5ad33c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWK230801701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f41812fc6d277cb8e12bbdd9286976c879204edc88cdf5017c78734a2a7b6d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWH610766003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0f865bb207a305b76147f59566d17a8fbddd8420d0665f94511e0ea1cbbd8b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK230801702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb780966d7d9d4fbc3598da7f40dc5314bf7677421d642c155bf2804fbc8fa8d9. 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/TWA470904001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24273e7fc8f39d67931e81f7b5b37c7d34cd5379df3c70092fcc09fad74857c8. 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/TWBH31600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b833873823eb8829023607c53e4f681021c1230774634090936dc6e3d75dd. 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/TWBH31600013.