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 0x0ca2f7e24fd88539c7f36bc6173a2eff08168c283d4d242240b5cd61b43f90a2. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b0afcc1-3329-4fbe-aed6-c65b4ca9bdd6.json and https://artists.proofprofile.net/proofs/artist/1b0afcc1-3329-4fbe-aed6-c65b4ca9bdd6.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 0x502be3735272076622faaa503d20228dcbc2c6ca44e26c0f9f464a771f23c4a8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR10S2256830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd2a3ec39ca983ec1aa3e4ae07b05bf28a438b642760cc57276727c8247c614. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR10S2256831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b6353a9eb13f3280913f742486178c4173944433708bac979fcb5631347d0a. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/FR10S2256832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed5f936e0735529fbc1a51c16a2358e47380821a8af7c9394c61ceaab513aa5. 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/FR10S2256833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc391565dd8016427f3c051b3b35849fe2d11e2df24efcf05a002939fe67c156. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR10S2256834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5113d9e3964dec6c4368b84ca5e0a4034f550f5f8736a3f33cf279cee19f8f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR10S2256835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140c61853c3cf84f41b88f86dc95f32b7948015f2b76f565660c47743c96b602. 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/FR10S2256836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64493d48263fddce5404df58db0e22cf738205e4032d6d31b4ee7598ec00e3ba. 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/FR10S2256837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433901bdff40f32072495841337d391be1d1793be401f0e36e9b1c91e331946a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FR10S2256838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226c2c748b9d6f0ec5d510b9d02361838ce6a779b6568cdd5b1cfefb8316a61d. 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/FR10S2256839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c61ed33401d0ec1e06696a7920179605662af6a29485fcd52f059c5faf7e860. 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/TWA511300871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cf2a5f2cf71357eaca3088e8f2e1517dfffaf9896474ff5848ec21ada58b38. 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/TWA511300633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60587d83955f1dac34fadf6148481f50c09956636f67889369a8db02fd822c23. 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/TWA511300638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386061ead21819f4743fd1d4709b51945b6f0915a379612f8447222d3b1183be. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TWA511300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9c8dd600524b0e8732926225c3ae45497974f793c85255385bc00ce88c703c. 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/TWA511301932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafa551868aaa25f685dcdef622e52a06cec047061d2829002d05d3326896c1. 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/TWA511300894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f8d6c70fc0cca3312aea05dae469ee7e03b4a176b53b519270ea84356546fc. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TWA511300631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41988996b9fcf300dcfb7476cc9d9354e0e59df9cbf75e9331d4f08b6d3a8f6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TWA511300861.
第三屆 全國大專創作歌謠比賽紀念專輯 神采飛揚
第四屆 全國大專創作歌謠比賽優勝紀念專輯 年輕的感覺