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 0x3cdef3b6ca6bce6b2f8da1fcb5ee6eb9acc3eab7c7921ecb63a0f112eb8c44a4. 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/12b31772-96d5-40fa-b92b-40cc29f87089.json and https://artists.proofprofile.net/proofs/artist/12b31772-96d5-40fa-b92b-40cc29f87089.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 0x817382001e776c9a093e2fcfbd8ab76a4cacf1f58dbbb562dd8abdc76be0f86a. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/HKG732155880.
比昨天爱我（电影《以年为单位的恋爱》插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9374eb9a46712369b4c2d2e8d8e2fd882f553b5105a6b6935617ac2615c769. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HKG731790837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18b1ff2888704a4b03479900a0405819268febd6c121c3423c936b0353c0998. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/HKG732251083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af81a9dacd9ae954fd18dbf2efd47a3f2c3a46a49e0612227b34f9c5a9094bf. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/HKG732296651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf589623ea10d1e95529cc20fe96fe1165511f82afb1c84496e29000e6d5616bc. 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/HKG732460607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7085c228c925dc5f288486f0dea4343e372a046651b4d2e3e45c1ca746558fa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/HKG732428172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ae2ec2cc63eaceb649d3322666e5f67a9271b58145bffb02004f847e69c799. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKG732460623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02874c44ae674f3d5dd621d206c39f883c53458ee89905ebdf4cde9715c09ace. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HKG732491806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c098e28012fc98633e630b1788325af72e112b50541218ea9cfd5cd3021e99d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG731401907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f82114ba5727e9ced55e6a9e0ed396520b164e37c210faa6a9220a11b4c580f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:48Z), 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/HKD012417116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7295ee0f42fbcf22b39f22fd32606153198b817b6cf4a1e2e6d00f11a2e69a47. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HKD012498838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ba21503863a0998b0adb44648d4c673fdaa057355bf11459935dee1f5e7afa. 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/HKD012512085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d95914e840ed9e9f22dd689976cefb6ca88daad8dc02b7f5c77fa237dafd337. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/HKD012554348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec839e5ac3207e1a8a8d5344c4192d6e183e8cd393a86cba8dedc521936ec9b5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/HKD012561524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9dab1aecf8667266dd93397d7ce0ba7af7b47c1afbff7fb709a53e45e02e7a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HKD012615627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9af322bdeb2eb6ff6986b4ed60f4384ff52f2aada5ecde791eb4c165c467b5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HKG732577098.
现在那边是几点（有没有我的香味在身边）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96ce1a3da5341a6b27ff2fe5e40d80ba08325db441a1dcc198f3c5987147a3b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/HKD012681966.