1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0d9f71bdc3d7a9975c409a58e7583e026d6fa68aaedc50d2da27d112646380d3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7183986-f4a3-4888-8027-bc8bd8b0cd53.json and https://artists.proofprofile.net/proofs/artist/c7183986-f4a3-4888-8027-bc8bd8b0cd53.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 → block OTSBitcoinBlock must exist at that height 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 0x817c7d5afc3d1d5064ca1921390c3e364852b2a8f9284183c95609b28180d546. 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/SGA871300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084fe1034b6cb4da46b1eacd7f56105d90c2ebc20e115ddc12a4bbe4a2318984. 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/SGA871300016.
戲說從頭 - 電視劇《豬仔館人家》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa367f04ce4540d574b44b51182b4eedd54bcd977dec0fe1bb62fef9f3e5c6dfa. 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/SGA501213851.
無言是愛 - 電視劇《豬仔館人家》主題曲戲外版
一首沒唱完的情歌 - 電視劇《愛情風險》插曲
《我聽到天開始亮了》梁文福作品專輯 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb020c027ce5ab86d1038a67519a3ce4e3c0d2392fe369575f5a297a54b6d029a. 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/SGA151601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4d274e1a1e710db143687f0bebac6b5c3f2626d769af81e0cd042dbdefa71e. 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/SGA151601013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe935ad8feec9ba47f80d16506a54d6caa75915d5f5db53ab656913d25d4a38a1. 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/SGA151601003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2e8326de65d55973072e8608f5aa058e28ca646283c8a83204b33fe3d11915. 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/SGA151601014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7aa21789fdbf828307127259b50d30f14390381d89ac06d90b846c403fea0de. 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/SGA151601011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0e4ddb57e94e654fc0f0a631c30c8588e38acf6532bfa2a004bc8c7570b302. 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/SGA151601005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cee1fd271f2bfdce8302887d1d86c151a945d8c276b623b82a8b41d4624129. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SGA151601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005623d9756dc84680e636d55193f793f8235b8ac0335788b997d450b341ef70. 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/SGA151599002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190ec7073b4aa312982c11af2536df401c71cbce2306bd147a365b74b8011285. 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/SGA151599004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2197de6e6d5271a7cfaee40f2d2687b216b0b1c6bcad87a4d0e00412b80027ef. 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/SGA151599005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626d7f2df2cb7be962cf47d7712fc5a4f05bddaf34abd898dceec77e35ef52be. 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/SGA151599006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6235ff05a212992bcfb09716a238b68ff96f5a89b9ff55e2320dffcb0a88878. 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/SGA151599007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37584913e8145b9ebeba62c1d7bac2b239d7947d369436a815dbe6b9b56f301e. 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/SGA151599008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53c46b3da55a980f42cfda805de49605b6efbbb7219eeb26f385d47a3c51bf2. 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/SGA151599010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1303cd65bd5267d3cde6f9afc5e4fe5e8615bb28ef7ac5fa1c3ed3c56a0789bd. 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/SGA151599011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5295a72f46c50577ad22c582fc096a265a30e0b071d7e3c39aeb2b307941a014. 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/SGA151599022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439515744bd9612dfe76a1098dee1cf97ef55cc7a8687f6312d90e130d0c945b. 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/SGA151599012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc0984c2a992f22d027f100f125fba9836a78c8cf68cad34649c37c48da57bc. 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/SGA151599013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afed471305565f42f4748722949a6c9e868b97465367afd44651acae4b1d617. 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/SGA151599014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb596415b7a9129171e552d6923bff2559e84b42295757ba57bcf0634c7819fb3. 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/SGA151599015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f89ad82b63f675a8db5969b5b3499dccbbeeaab325c9530d2de12b0c149a39. 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/SGA151599017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4581d21f99738a45a1bdb6f4a3134c4c498805ad7ec51d05fa3a414266e83cc4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/SGA151599018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb2e088ad4df54c9f01d3ceb0ca8a9a10059bf655c2a9e3aa97b1cea4726d25. 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/SGA151599019.