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 0x98d56c52c2a559ee0be921a92966f141be137c9689f45bb59cf850b1bb3de13d. 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/47df950a-4301-4eaa-9936-50505574bc44.json and https://artists.proofprofile.net/proofs/artist/47df950a-4301-4eaa-9936-50505574bc44.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 0x14e522b033e35b353299046da1d595b97e1301767baa1920873de8e2ac7f5906. 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/TWK231811301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce74adc4182766c76b09825f3281fc977718968c4dcb2f5e9c43c2dd9fd19667. 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/TWK231811302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0a966bcee42ad51c0cb4d5d0af6365e764196bd33512bbe2d76e4e09eb5a48. 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/TWK231811304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03eb355db2c29356fd040366d48730564009cfbfa5cf13d0a805cc281baf48f. 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/TWK231811307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7448e7871b60cbbca88938dcbd729c04cf7526ff6d1e856e37ce3e3696c8a563. 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/TWK231811310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd5088512fe508eca97fce536d8e739455737985719ae3ef48ace7bc408e5b9. 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/TWK232283130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ee667f5b8ffa7702a11615b3108ab04b95aaa93e4c02bfb5c631e419eb37c5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TWK232182940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ca9c6f7b9b1a0a102b860ee3014cfcaf0f3f3f58b95e50d586f613eb268d8e. 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/TWK232182770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb053277694e21399ad8cf7c91d9d3629310b055ead56776d9a441d5d4b30ed3b. 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/TWK231981340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b221a0f7b721a89c2b5a36bdd8521932025c714203679c3f0db8d2f9e1aa1d. 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/TWK231981750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955819373ae903a53659bea13c00def21f56ba8ab7656c8b216550bfb995304d. 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/TWK231981790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa686217f80aef7807d9800b0a0002d078671e9d00c887cff6b1047456f084ea9. 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/TWK231981800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d0dadc0e37f4c152560b4c74c9dbb6e7dba510bc893e5067dc019d915bc9e9. 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/TWK231981840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1774f625d401fb7f834fb906aedaa511caed1382abcd6bc1b96a48fc37d64cc3. 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/TWK231981870.
命中注定 (戲劇《你是我的命中注定》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63a71b67d4d005efb03d19806e1859a26b5545b5205a78f751359e3109a463e. 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/TWK232082310.
吾愛無愛 (戲劇《你是我的命中注定》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1233d0c0917f25e8dd7c0ae8dcd499781cf42473801298b82d318a95287258b. 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/TWK231912303.
《最佳利益2-決戰利益》戲劇歌曲原聲帶
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32adf8f0955ec16af54eb049b5fc9723a3cc2678e0a64b81bcc59430d80c6a97. 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/TWK232301806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7227efd94a7b5fd3c3847b70cbc46fe2af4645874e22b6278b7f80dd55a411ed. 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/TWK232301813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b3d18cc21825b3f6ccdae2d40640ee1b990c12c0600423852c8cf388d6f2b7. 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/TWK232301816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e7058f066305eb4a4a8f6361ee6e5e19e364609371604e62ed68bb2610bcc2. 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/TWK232301817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de68ea5308cb045c9078dec99052ac5f7d32cf800bfce876924aaa763e215f8. 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/TWK232383411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ad8b6006cab976482af83792f6eadb8c943eb0df129b0ff98508d522a9f720. 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/TWK232301828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d04ea80ea2f68399961c8342a5141528203e8e2cdaad16e1aef089c48c7c75f. 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/TWK232213405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5610d0616d71a93439e08d2aa96d374c6d55fa510acb1c1e3b9daac7208f607e. 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/TWK232283290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629b7a0787f76f5d28787214b63751625eb7c1e35e7ba1fb5830de9a15af33fd. 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/TWK232213403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9797dc7e15da1ff4a717a462e71459c521fb9c875225c35857f219666879934. 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/TWK232213402.
愛是痛苦的總和 (台北小巨蛋《活著》演唱會宣傳曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1603317f8c6ff19fc3fa8948c5815ddb167582f0a349f32cc3fc6f18523e1467. 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/TWK232483710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ad8b6006cab976482af83792f6eadb8c943eb0df129b0ff98508d522a9f720. 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/TWK232301828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217165ed0d0f28787cb26251cd09857c14419b8ed18fe88393056d1618b7f0a. 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/TWK232283370.
怦然心動 (《你是我的命中注定》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd265122c4162a23d32ecee0c3cb05132e5e01a70196e7d87b22680bd05c83a5f. 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/TWK231981930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ffc7dc60e73b1ebb46768c17444190384ee83daa54bc12b6edc4a6f0af52e8. 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/TWD952381104.