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 0x64c65769a0fc10b2254c8f8b65d165a24927ca955c007c38b4ffeef31196dc94. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbaad07f-e95f-466f-be5e-e32710bb838c.json and https://artists.proofprofile.net/proofs/artist/bbaad07f-e95f-466f-be5e-e32710bb838c.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 0xc7158a9ec4072a287216956c32bf96387cc91e72fe21cc9e15ea940137151480. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HKG731679432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b9e0c97e929834a22264132ddabcc802b2ba2c423b50fc222a71ff4bdb0293. 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/HKG732124324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e6ad47cff0df0895428f390e06244047e07ab7cfafac36d7d2dd33e9491cc0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKG731679433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbff1aa1eac57801c8f145f6d560aab3b009aaab8aeab433b3e82e592f12808. 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/HKG732124328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b6bac3a1d409c7672385873abd903dfb2373eb37368e5cb81b61ec81fb0a47. 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/HKG731679435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300aac0e9b0bce40dea4ffa214dfb81a0eefa7b3fbcc74d6d7a8e37ea3f78d11. 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/HKG732280362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c60b28e155c9bdd53c00ee7303c7f7a155044a98dd7654f899fa6e7d4402fc5. 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/HKG732280364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b7b61391dc3d445dd6845d84f86056dce9c2855b60f83ad62e8cb6860612e6. 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/HKG732280370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104c53f610847afc07319bb371706c297f67ff14ee046605c84c8ffba69de312. 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/HKG732280371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4713136d69e4450bc167f8f9d9e95158ef935df044ced25261b6fb444b197c72. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HKG732280375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914972b6a6ad710989ea32d4ff17da86ac2d6c9e054c1bb8c4335787a28b4445. 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/TWD252050194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcf50c9e834a9f5bbaa61ae69b1da9c86d32e27265f126a5fcd0d991142399d. 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/TWD252050195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942b6e9dfce77eb0c52760ad9bb8c4327ef99331e8b7d3ad3ee4f6171d123566. 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/HKG732280244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1e3d45dbbacd1330142eb10d6bd3d514304a987417d4f8ccc8d74aacdbf114. 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/HKG732280245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836ca4f5d0e5cff836fbc475fb30d9aafe57da66913527e93e18b4b6146b7542. 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/HKG732280246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4b1141fcb193d275abcffbdb0070733fd6d5a38461baf1ee562a09d176c4f8. 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/HKG732280247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7161baa79de618293cea647cb813fb578357547a83bb953ca7318e52ebb20428. 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/HKG732280250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b334d7cf592f8918acfeebb83b4c3a3ba7563ff3606e5366442a6371e81a83. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG732280249.
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
向陽花 電視劇《那片花那片海》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a1669a2aba6b4b4b69bb000cd55a7ed3f20cd3b4baf6f23f351a66f6a3b99. 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/HKG732280315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcc0ab6aa9a178fee52fb3989ef34e1c84183ae1677d78631876d46113e0085. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKG732280316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2b22a046bb4aa6839548bb9fdcd739723aa61a23fb2a25737be3e9cf80c7dc. 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/HKG732280319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d54860c37070b3a7070ee3b79ae39a1ac1f048ea5664cc83d8804ef333ff954. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKG732280321.