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 0x8d25967b119a3b70cf2e07927c76fdb9e62559a1cd55c89dc805d66e11a207e4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/681537a8-eb1a-4d1d-99f0-930b1ac90dfe.json and https://artists.proofprofile.net/proofs/artist/681537a8-eb1a-4d1d-99f0-930b1ac90dfe.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 0x79402e632ea4c85b01b1f680235e16d1f613851cebaa6af1a4c4ebcc9a0763af. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/TWCC32002783.
花兒一唱天下春 (電視劇《山海情》片尾曲)
寫故事的人 (電視劇《我們這十年》片尾主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8992099f906cb73592ed6669e1b2ccad9c732c449d3067f402e5f0bd25fea8ed. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/TWU712205195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99646c5735b55ee0f31ef88f935fdc7e5ed3468dad6e2f73cfad268741b0d9d3. 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/HKG731682568.
人世间（电视剧《人世间》主题曲） - 伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220e8bf23130d099513d0a47f31d7948d3c14f89fe5059a2192fb0df03e64439. 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/HKG731682569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c302fc8d779f733dc71de3c5968a710be14f998b7a12a2668de3810e28f790. 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/HKG731682570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8352307796ca06dcf79ad7c37c39d6b55f0702124e39790278be26577912a865. 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/HKG731682571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8356ecf1f2e0e9058bc6bcf0da17a8510be506114ce263377fc25b7d86ec7d. 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/HKG731682572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bac13135d4387d1b5c876c5df2c57a8363d4ea8b331662ee17e692fb6560cb7. 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/HKG731682573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d295dae1a113a7e0e07a002ded1cbce102f22b90c0d5148827c30d842fdef2. 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/HKG731682574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4b9cf0d9614d8be974d299ae01b74d89460582bf300541e7f4fdf8555cb3f1. 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/HKG731682575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ba3fae1e520ba3e46bf7b63371b4bcc98ac43fcb9505cc2069065c9d769d2b. 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/HKG731682576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7683d70a3fd385bc1047ecb3287d2f5eedf258b40ca4ec3dd511467be2977e. 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/HKG731682577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aea32f8c5853ba6f0fe423c36cf0d4f54e7a066fca1cde897fe5d787631ccf4. 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/HKG731682578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1100d9cb8520ca49127e06d975372f929e1abb212839818881d038f07154aac. 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/HKG731682579.
母亲（《人世间》电视剧配乐） - 东北哼鸣版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f481658924bdf596646b76a22a2ad485b7b5774a4d18fe352edc7bd9965099b. 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/HKG731682580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c2bd97950e713248e6cdd1b80f2da2ab39280e0747e095e1553bdd646ceb0a. 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/HKG731682581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee6800318576de2673e560961e5bcb8e6d62d8e53e3cac99c15ddfa5678575c. 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/HKG731682583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a6715b8915a89c67f5edab39315faf61286a1878f068e57c090264921ac80b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/HKG731682584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4728499e2ca641b9e64356d43256c08fc7055e0e4f76e1edf379f46c0a831fd3. 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/HKG731682585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6b96e7c6390e93be7e2e16f9a5663beac59cc1f92d7f91d4433b5456dca3c6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKG731682587.
主题（《人世间》电视剧配乐） - 变奏03 带女声哼鸣版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9ba9e472cc2dd2fc98f0f13229885a62311e1436eb8d7117176e3c824648d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKG731682588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e46e3f9a8958ce2f84f26006674155e45526fd1cf4a2f26b0291ecf2e421b2. 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/HKG731682589.
幽默（《人世间》电视剧配乐） - 小步舞曲版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa605acf95cfea5746e0d4476f05eae513cecbd41538d20cfaa26c6f43283af2d. 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/HKG731682590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9251521bc9a164c09fa7e04a76237ad2b182b142cc6515002c5d330ac24fce61. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/HKG731682592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e16cd388d2874e6c280c09beb5cf70de12994d340fdf7f79df92f3c8f360302. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/HKG731682593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9b39c40d4be1bbaff3d65d6e3b94985a48f3f991e43f24e30eacd5204b0940. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HKG731682597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6631e13a138dab87f1e3b3431e01c96ae8440008b390500a188666652580989. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/HKG731682598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35df2cf6f83a8128ef21714249411de7a1bfb29c57519c2166caca359f11261. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/HKG731682600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79b1ff92c3663bbacca01a885f4e2c76cb65fcf186ceb2ecc04486e095ab1f1. 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/HKG731682601.
远方的花 (电视剧《玫瑰的故事》主题曲/片尾曲) - 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14d041c85c7072816efca9523a1a1b2e4d17b8d9faf6eebd5e578f47012386b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/HKD012310180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2bdbe782f3ac4c869911247f9b20e3825182ff158fe215b2fda7100ae6c3b1. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/HKG732508522.
一穗沉土，一岁沉浮（《生万物》电视剧主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b259bb68bfbad6a0280715dabe5a9775374ddcbf5efad988047c49472b3a89. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:21Z), 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/CNZ842500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b259bb68bfbad6a0280715dabe5a9775374ddcbf5efad988047c49472b3a89. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CNZ842500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8be71a446a7ee47cb51ddac119974a050db9a59ad78fe9fd22128501e6b800. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CNZ842500220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb071c356c5faa61b60868cfb20ef812252a5670191e7d852b70f3a19aff49f9d. 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/TWD251855222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdc4ebfcd9802e85e5464fa086958d9fc5567c559e47673271c9836017cb413. 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/HKG731877657.
远方的花 (电视剧《玫瑰的故事》主题曲/片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0196204144517ded91569d77d650387a6a06a7134ad7314a4f913233b466ff0a. 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/HKD012310182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14d041c85c7072816efca9523a1a1b2e4d17b8d9faf6eebd5e578f47012386b. 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/HKD012310180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac27ac4948032e69ccc81593918b3e3f763e724f704702267da7e2e96022bdb9. 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/HKE022287136.