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 0x7e1a333cb111544b7edf06cfa96752bdbabed19b9df3ff98ffc520dcac13cae3. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36556c14-5344-49e6-94fb-c737855a3ec3.json and https://artists.proofprofile.net/proofs/artist/36556c14-5344-49e6-94fb-c737855a3ec3.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 0xca10f078063c73222166525a4d8d448a81b80839c9c0d4fccc3642e53c8c44e0. 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/TWKS52300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c75e62ab09616ac9e60dafde1218b186249d86b3a68740d4aa1527497f1a4d9. 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/TWKS52300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bcaef17a8cc4bf3a077b011ac58d2671a984e7335f1911ec506461bf8ea4d1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TWKS52300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cfb2c7ab98e5b6517d5a57c374be65a53a264708d28a49bee269b3719a09e6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWKS52300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eedaa934c9d441dc6ece6374e9cd607697e5f1b0e4c0cd40f469e7d7e72681. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWKS52300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd0a779de43776612deca8d71536723ed36202e5aefc51e48ae2648d33e21c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWKS52300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d41532d5e70d47d674d381bbe18b1de25fd7397f84368b3270690dec8a3eb42. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWKS52300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdae3ce72552fa355d0cf8c27510bf557b23b9665174c6b1085d0c8602c73d1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TWKS52300010.
原住民的孩子 (110全國原住民族運動會《原來拿麼力High》大會主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb3e4ba9d3a1aa67bce02747f7b6c7b7e8892f6118be9e7acbdbcf4b8d045a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWCT52103744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33698364d38cde3690e0a3c7976cddb8a46390cf5a90b2824ed5972d6fcad5b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWCT52103745.
這座城市讓我們發光 (《2023台北市原住民族文化節暨運動會》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e963654fddc9dab319d4a38d3e3561afbb2cb591ed4e343ca1965449e70fb63. 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/TWKS52300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1aba9a53de8a58174c860b0c2181e36b124d518967ad115fabe0818d73eb4d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWCT52003229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f36bc747b1b25c869823630611da5e6fd5d07967e3ff9c5a8d301d237a65858. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWCT52003230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e4cbfb46d75ed53a8cb42c6834157bb8d5ef2e797cb3bb9b0f1e2f2a754882. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TWCT52003231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e7ff30c007961a1d1478ab6168961e8e2e078434c9ac682b6b53057d26ee50. 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/TWCT52003233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5a4fb0ccfbca6383ab0e5888e44bdf208f62f77347b31fcea892de3a9f7c68. 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/TWCT52002615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894af0ddcf526f76528186ae46f16e2114df7fa7a68201a8263ca881c71c879. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TWCT52002614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dab93f741d343c25d570c596de548b3d7b090db989f86d4ecdc5b4a8feebfe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TWCT52003236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00b4aed5d612599b3c9cd415f8cedbe2aa0c25b4c1e6381b6d4f4acbe0c305f. 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/DGA0R2450379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664cb060892d1aa6ec73ffacf8131483498592037decae0af75de496964f0f73. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA092392440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5a4fb0ccfbca6383ab0e5888e44bdf208f62f77347b31fcea892de3a9f7c68. 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/TWCT52002615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c01d9490ea0659997b5774289200542b45c10eb2dbd4b11ee4f6fa717616207. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA0H2414530.