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 0xa9978e58eb8337e2eb2abb672476e303e9fb0b815fa311b5e7c2b9c5dbdf56c5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59d94ddd-f750-4dbb-b7f8-2be26f518061.json and https://artists.proofprofile.net/proofs/artist/59d94ddd-f750-4dbb-b7f8-2be26f518061.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 0x22b18e0d62bc402e5155be74351e483c750a69d99acd3d054e7ef7ca1278278d. 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/TWD130100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6cba786fc6044a34d296bf56063aa467e8c9da0e6b0280bc18bda542ffa4a. 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/TWD130100036.
中國交響世紀 卷拾貳 - 薊芒草的春天 真想要飛的台語新情 Chinese Symphonic Century, Vol. 12: Silvergrass in Springtime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97aefa5a894e1905f3f1ebd70a12a644f3a4f337355c3cf003f4533548c0b5b5. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:59:06Z), 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/TWD130500873.
中國交響世紀 卷陸 - 牛犁深耕 先民渡台的歌聲風景 Chinese Symphonic Century, Vol. 6: Water Buffalo in the Fields
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc15b2105c4439efcfd704f4a9ac956d6ba5306e42f4d7dff9145c8d63d582b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:52:29Z), 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/TWD130500603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd388c93ad325d933b9fe89e0de68d9f7c6779358e84915642be9ba51ac715c9. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWD130500606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaeb3a94494c9ed706c51c3971a0abbdb07079c0b257fd920d34b89c4cef90d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TWD130500607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29d748a63580e39c37b2f75653e5590a7c4ff89ffd715ab7d756e1471210b5f. 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/TWD130500611.
中國交響世紀 卷伍 - 亦歌亦淚 民初的暗夜心聲 Chinese Symphonic Century, Vol. 5: An Era of Songs and Tears
中國交響世紀 卷參 - 想起我的好哥哥 空谷迴響的山間唱和 Chinese Symphonic Century, Vol. 3: Thinking of My Good Elder Brother
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a9a6ce8e695dcfef8db8c93f333fc84b2581d6b4dafab817c8cc7081ed93a2. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-20T11:57:10Z), 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/TWD130500565.
中國交響世紀 卷拾 - 青春與憂愁的筆記 永遠的未央歌 Chinese Symphonic Century, Vol. 10: Notes On Youth and Discontent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be8e474345c4e9b16522ce000d3670f1e8c4a6496a2df820110ce0ca9d8a763. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/TWD130500845.
中國交響世紀 卷柒 - 缺角月娘 日據時代的命運悲喜曲 Chinese Symphonic Century, Vol. 7: Under a Crescent Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606879fabcc3ae3d817634866066b712f4187aa1f32cfd23d77189d7b8aaa003. 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/TWD130500618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f837e849d19f33417095c9ec2820a4c25ec6ccca244bdcb000464f55d3768. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/TWD130500623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e72d1bdfa023c63bc76deb550cb5a4720f10cc2e48243c4d1628317ae71f72. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWD130500624.
中國交響世紀 卷捌 - 瞑，那會這麼長 戰後歲月的低語呢喃 Chinese Symphonic Century, Vol 8: How Can the Night Be so Long?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2847046060ad6ed422973cfa77421d982f2065d83d71c457a35e0b8fa357f7f4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:17Z), 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/TWD130500626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291c2b626326cc30dbf59820aace479438eebb2431d0d3cad7a093e5587b0f04. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:39Z), 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/TWD130500627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df15334c12eaa0743fd478f4f40fc57e90bf2c98085bf9e9dd398c7f0fb9f0d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TWD130500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b2fd70a780167a8b109226e1ec42191cec1925d731b5ea62d621a4543b7ec. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWD130500631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04066617997bee0a6189b6121fc3fa72f2b1fdbd2ba46c4a71ee02be3111ab5b. 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/TWD130500632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43dcb61d6b4c3aa2792fd1da897fe12b7ae9964a36d13eb7ff7726c30385801. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TWD130500633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa860d243256db4dbbac35b623c99480cfce9e121439cf2602366a90d12db047a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TWD130500634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cb134468a2c9ed4607670a6e84a65f25336894f43794fd6d6f487750056260. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TWD130500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cc827a74c09858700667187741536751477bd6016df263f5f28e61539c4ee2. 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/TWD130500638.
中國交響世紀 卷玖 - 散場電影 曲終人未散 Chinese Symphonic Century, Vol. 9: Long After the Movie, The Songs Remain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934ce509a0cfc89a465287371023b28f9c984fd8b720b33f84c8e1f817aca068. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/TWD130500642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957cf114a870daa154ae44568d271faf415bf0514d4c11157e6cfea43dc8d680. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:08Z), 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/TWD130500644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ca05d1efeb09cfc8dc39552e336a6c393f905a5aa1cea9aa9dcfd31f94e8b3. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/TWD130500838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b8b79bc64ac8c8528b7f3ca73ef0c1b2d2b502341463081f1d1e1d5fbeb05. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TWD130500842.
中國交響世紀 卷貳 - 塔里木河在奔騰 海市蜃樓的駝鈴聲 Chinese Symphonic Century, Vol 2: The Dalimu River Is Raging
中國交響世紀 卷肆 - 打響你的腰鼓喲 黃土地上的庶民之歌 Chinese Symphonic Century, Vol. 4: Strike Your Waist Drum
中國交響世紀 卷拾壹 - 紅男綠女 都會戀曲的美麗驚歎號 Chinese Symphonic Century, Vol. 11: New Lifestyles, Old Memories
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c16f08a0e38e20398aad06cf4cb2fa7f8f12bcbeb96cfd1d78ffcb002fd8f9b. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/TWD130500856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa92d5959c9da191738b3b126031036f66017e426cce3926ad695a0dd4e057f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWD130500857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa351883f2262eae73624829f3f565f4bfc80e8062e61bb99949ad9baee3fee29. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TWD130500859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0483cf0908f58a8dccbc1d88b13ae58cd7c6118c6a154f57e27b6b7cbcccacf9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TWD130500861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7449e170716939b96bdbd7d122183a016c996e7f60090b24cd12464e5105b34c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TWD130500862.
中國交響世紀 卷壹 - 我在阿克蘇綠洲等你 浪跡天涯的遊唱詩人 Chinese Symphonic Century, Vol. 1: Waiting for You At the Akesu Oasis