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 0x1d2fcd4a09752b71dcd3d962ac7bbb772984bdf10c4b981042ff7bdc2feb98e3. 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/97281ab9-e343-4f14-a3b0-1fd116789367.json and https://artists.proofprofile.net/proofs/artist/97281ab9-e343-4f14-a3b0-1fd116789367.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 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 0x1729b301b7169e6b418cb63400762c77d3c6560dc8ef0038024147b7503ec293. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TWU711802785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566a0faf2b5f9915f2bd37cdf657d1a6e6635bf1353d9afc242238e6179a43d4. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TWU711802788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587f692c51a21a87cbc27100f334a225c38972bf6faca0b42710aed47fbe78ff. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TWU711802792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03cd41de09421494920ab3a9eb93f95be78244295477f1c713131a8a9049721. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TWU711802795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5548bcc9594dd4f95bf5282a7bc80ab27ee13a521619473afa27323720142c9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TWU711802796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a9904b3cdc866709f8112281e58764bba90611de3eb76cc7ea4a8eef6eb86a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TWU711802457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3f707969e23b04b9f703034e5f39ab6debe5b1e2f7446c0cb14275c34ef1a5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TWU711802463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845ca95ec1a6310f999bec9a2623372baa97fd38974b41b94f1f6d62680ff276. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TWU711803094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be7b40277ced135b3b6f828e7dc0aa43599e3b0ab6a506e608d3c6077de18a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/TWU711804350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532656330c916f63be0a00f75b2e9edd44605b0e07e9112c01ced516ab0acd6. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TWU712002548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9469e8059743d81ab91bd9776e1846d535ca3b8acb5ecfecc898098bab53545b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TWU711905899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d01fc4407aaae15190dc0ddc50b7a65c2e11b27732f7054f70128bde047247. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TWU711905907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2cadef0abad2644b68f82788b82408638ad94502ec2d089ddf994e39222d49. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TWU712005200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02cd8fa761d4c7de34f5db159abce1e6ca9c8e15c6c7dbb6cf683c9ce5b1310. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TWU712005202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcabd20d4e216d13fc59dad7dd853e8588c7bc0c771dfbf6a3c598739700068. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TWU712005204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b2b3f3e9d045a9100f7733f2138a5187cd865a368dbae496d5fa8d420ebd84. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TWU712005207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd642c48079efeeb1f2f58ee95e9915133a1da1126280e6473ca99fdfcc0ee541. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TWU712005210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe254769620a6523cce6c3088ac8d29a59f3c39d8f1918daa9c0c35cbc852be9a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TWU712005219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e8d23ba59fb81618c56b3c0d98d4510424b2417b251a9fe65ab5e050aec256. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TWU712005222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cd0e0d8acaf21fc82c559b1b7650377ad6ad4ed7248dc3464f2475634bdddb. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/TWU712005220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1328a758709094909b872859a5c3168ae36a2e10575d695a667cb9e4d6c38dd. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TWU712102435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f86b18ec176e62bda9d596f050df65fd59996481caac72ef3be4fd114c5fe81. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TWU712103799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa408f93e1d3b9729b6c7a25b8e59c9d9075bab4d04add256f42224e2ddd93d52. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/TWU712103800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404f0f124240ef28fa4709ec666dde782c5fe226d12ebbdf622d1a7d836a4009. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWU712103801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159905e86cf2fdc8601d33e4c7d1933c70778a87d50a53890cccdd254cee0930. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TWU712103803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148c73b9c10269a82499a3307388bc1b065ce947a8a9cb5f02d0ba0aa6da8018. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/TWU712103805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16637715bd63145abf1598e1fbae2ea5beb30e1f88d30f36151877db3a56af. 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/TWU712104979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758dde4f91cdef1505296ad5572f22258b11b041204cbf6be06f2ea3b6707891. 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/TWU712104983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a4a325c8248571d93746ff4513b5b535bf504ab8b7ea0d2a745711a38e59c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TWU712104984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2969cb441e3e73adb54c32c6b7e6df27bc071f86543d50d3ae5145d6aae58024. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TWU712202242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11de1e9453ba871788f4b005edc19d331b40b2de675e62d915501c14e57b9401. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TWU712202243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf497b79dc29b2b48f7eaaf8fb486fb9a725747ea3bbc3841da623030135665d3. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TWU712206175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d70241c1280301eacac234cb211018005612afd8822c3ff912a7c02d110987. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TWU712301967.
迎難三部曲 - 迎難/祢是我唯一的信念/世上的聖民 (Star Hall Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b1d46e0336130da38ae2f69b3de7592bc403358eda2ac438f3e3dc5839843a. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/TWU712304285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d102156462fa0b37a86e362afa5f5a102483b864daf0db6d5cd142181cf3d6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/TWU712305642.
迎難三部曲 - 迎難/你是我唯一的信念/世上的聖民 (Star Hall Live)
He 祂 (Recorded live from 2023 "Guide Us" concert)
說有就有 (Recorded live from 2024 TWS 30th Anniv. "HOPE" concert)
說有就有 - Recorded live from 2024 TWS 30th Anniv. "HOPE" concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b93c558e96ff760e3b6c611704e7c1e215bcd36d924da29bb4afff8e2f92c6a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/HKC992429754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10208c5ce2b81a61a4adac3825364aa451f9f05fef9cd8afc5fa6d4721cfd45a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/HKC992529703.
快跑奔向祢 (Recorded live from 2024 TWS 30th Anniv. "HOPE" concert)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d142b9e021d5b7bd888957e4e74404a3aa91b3ac03aa2ab22ee29a02481177e. 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/HKC992529798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b86c773ddb578483e24955d474db68f62f316eacd50b80181e2ae08ebf82cd1. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/HKC992541605.