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 0x98466d1d8969822a3d66fc1b03a90d319db6f5b6a3007ef459447e87d920f1a2. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d10f91e-146b-418c-80d1-2f9a0b65c6df.json and https://artists.proofprofile.net/proofs/artist/0d10f91e-146b-418c-80d1-2f9a0b65c6df.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
夢想由你 (電視劇《暖暖, 請多指教》插曲)
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 0x0b20c0f374889beea3c690dd76f8e9ffe2bc94890b0e5340f5105e3bb3837669. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002300 — a six-check JSON result.
春光如此卻不得你 (電視劇《我只喜歡你》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb313a484c8a4ad7cb48fb13792926a4a4f83ab785bf4bdab37f70fdcadcb4746. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718566 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288b3ff0f61102ee27073c4298ab9410f513edf039a4c8f4668b80a93bc6d8d5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718567 — a six-check JSON result.
藏不住的心跳 (電視劇《我只喜歡你》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a623c5f8c755cf6ab9c7eb00e855d7d44f0a5abad14a5ed1f06c1ed9af5fe4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718568 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9826358d5bbd8c874f4a68ef8f9e0cd4ba55d69677bb617f40bae8534cf322. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718569 — a six-check JSON result.
我只喜歡你 (電視劇《我只喜歡你》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31ebe13060ef5ff92a929be3b7b950350ccd756522de2b5b4ef2783d542bcf2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718570 — a six-check JSON result.
最相愛的朋友 (電視劇《我只喜歡你》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d703fdb2095a029ac48596fb03709c03d241dbf57fb165627f73ef9904868a4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718581 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bcd21ca55f40862418e9f731a3bffea5b0a16308a33ea63893c6b9c5fb44eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d6cbdcb46f34d8844b7cf058a4ecb0da253869c6134d4169cfc3aada3ba166. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718583 — a six-check JSON result.
兩萬赫茲的距離 (電視劇《我只喜歡你》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc2651b7b49ff499052b0db39d5b9869ae334015347ffd5bde75d65424224b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCT51718584 — a six-check JSON result.
最好的幸運 (電視劇《暖暖, 請多指教》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd685e38cf7131eaca9852faa593c2d40fe165b484fda2f1ff20ba9766fa5b406. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002246 — a six-check JSON result.
一首暖暖的 (電視劇《暖暖, 請多指教》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e2aadbf90ff2e7d21220b289b295225487f60591283a8741ade299c7c76d6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002291 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b20c0f374889beea3c690dd76f8e9ffe2bc94890b0e5340f5105e3bb3837669. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002300 — a six-check JSON result.
要替我幸福 (電視劇《暖暖, 請多指教》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6de0f0578553bd4c2915ba192206b8531e39ba3076dc4b45891839655d8a09e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002301 — a six-check JSON result.
最好的幸運 (電視劇《暖暖, 請多指教》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0307e40f2a717a34aa7c745b48d5b9d5981fe287f71cb9afdb206ffb57dc1d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002318 — a six-check JSON result.
一首暖暖的 (電視劇《暖暖, 請多指教》片頭曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6156639ff94cf051c3392d683d20096e522272077fae0463ef852fef7321d86. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002319 — a six-check JSON result.
要替我幸福 (電視劇《暖暖, 請多指教》片尾曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cea1130a889d666426b0975a9e25da5686e1526e4e346c6b155a7f384ae0008. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712002321 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd748f8b8bf1f01f289d68b8daeabdf8c12ba66ef188639927139a13f6e1cd596. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732152831 — a six-check JSON result.