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 0x4d8e0201b9253edb95715ed1cb5d0b5b91a83fe0a9493c3da7d24a58c23806a6. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38f2869f-8177-4ac8-b7f5-43253dee1e52.json and https://artists.proofprofile.net/proofs/artist/38f2869f-8177-4ac8-b7f5-43253dee1e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
上海灘 無綫電視劇集『上海灘』主題曲
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fbaacaa9fcad81cac7a82590c5802e245d61c17586ee46c7b491b00bf154cc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC630300721.
說天說地說空虛 無綫電視劇集 『天地豪情31集後』主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf53781601f63ad2371a076eefde116eaf8de9f191bac135bbcd2d0542e1d6c0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631003544.
仍然在痛 無綫電視劇集『天地豪情首30集』主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c449b2d947f04d5cc3a8108f80075d46ed99bcb793a91a7ed4f1dc5a5d47afc. 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/HKC631003543.
勝利雙手創 亞洲電視劇『我來自潮州』主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f0ce286afb64c6738c0ebbd16d1f1382c8e765c7b1779665b5b9efa001de10. 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/HKC639722701.
舊夢不須記 電影『舊夢不須記』主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a9d7d519e702b189a69b484974ea44c39e28909f6cff02df01b17a120726a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC631003406.
少女慈禧 麗的電視劇『少女慈禧』主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d79fdd938b44bd296f0cedd927121faa75c6713f24bc1dc3d33345071a5b5ab. 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/HKC630902821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fbaacaa9fcad81cac7a82590c5802e245d61c17586ee46c7b491b00bf154cc. 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/HKC630300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84111683ee818f3418fa000a3b58dcf94cd8bc5995a43c373008e01b6f8d5df. 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/HKC630025104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914a1c3d73d5735d756ac8e13e408cfa6296cd264eee561239f09a731754757b. 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/HKC630400814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b170143f12302c095f6efbe66d595bd6547fd252bff20e70221495679cf8ba5. 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/HKC630025111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471966b61533a3cb99a74844f01c374b8f4fb815559ae4165f54421c80f19526. 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/HKC630300618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afc989300c3f7776878a9dee624f4f07dfa0e6c840de2513805f3b53673d38f. 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/HKC630300514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35726ff20989105a28241d409f9f1214cbf90845a9f90d5aa4eff828488f31a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630501354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfa43314b3f3cf7e8259e961fefa897764fe9c1d37a2a0bc35126ff58fa79a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631204277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49b620915fdb32af67f831e50b70fe6a1b06d845097624577f0609831661011. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC630100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39808311b7db31ca81a34ba080978d284cd38c2688867d47904765a7066cd6af. 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/HKC630400828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686171a63935b6698c3ff35b0d3dd9e8b6fc2200a75f63bfaa996952fb1063a2. 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/HKC639722713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb79b36061f1e53d76e1664a6c3e419da47f03e4ec836f2e5ea050b996cc4f2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630702235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41481724883622174c74fbbdc4dc99f3dc4d3d21191be5ffd81afda4d9ccfb0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKC631506252.
集體回憶......耳熟．能唱 六十至九十年代好歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106cfea50c2378b32d8862048835ad5f95dffc4bd9fd5c88c44741c79f5d01a. 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/HKC630480250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710fa55958c9a9653e4190518a275c7554e1462148b84ed380ce1d3f0b430270. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630480251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdc8f6e9e4888ac772b0d7f1b0c316ef0adf5aaf8ee6f82d4cb808ea902a5a2. 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/HKC639722709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0df0b9e750b989d646c1eab6f0c9de7f16265a9b402fc4ac3cdf7bb2195bf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC630300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a5df1772304ec632a291ce423e0d5a34023bfba2f017924327738420c1d25b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC630200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1b3d4abdcc27661eed1298859ec55504581594f5a6e5fb1ce429b1b1cf6a52. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC630300753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e7e28ef09340ee9af4ca49d6b02b84276bd46eb345c1c1b750682eadcda071. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC631606718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d74b5cfcb0de01cfe8fba07418f88de3de3c56bc09b0cdf32e3ad3005836837. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630680393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c7f0fcaf167ff84af20b9f7283e51c3d1e51ad6f39fe8fc09995e4740fb180. 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/HKC631003412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1b3e9ba4a10824699e03859410b9f92c4f444c750817837274286b04a96c93. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC630300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0cbaf853c09892f027980d9a8468639e50702e866dd613a41fb60b60465e87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631506428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7abc1071a3cbdd58726bcb1eb2f6a15a2ff09967afd77afb19f9bd98957ea8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC631606716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2804c207db645f821549324a51d51114703f4e1ca213f5b8393bf18e1ae735. 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/HKC639722710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b678b03ec575dbc2471725486b7416d68fa1ab518d6c19c43c38e86a89e66. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630300512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70de86ab4e52ae077b7b3a4a01141cc940cc240260fe78efe486de959ffa8085. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630400849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eca25b74d0909e79397997a0597ac9debf023976ade83ba32476328fffe8c30. 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/HKC631104220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aebbb0877c7c7a338b86b9eaa196d21a59dc281a3593f5e11a5651fb204dd96. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631606717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4eca7c62563ba64e90b6e9bb201a6de7a726c3cf25aae8c5fda29e767be125. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC639722706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e45f4b5937a14566144b46339828bd257139f257ff52a74d73f3691d517535. 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/HKC630702342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44477a63be51b5b1b47430c605c4ef70f1f6f817c8aeeceb1becefcc97f6c66c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC639722711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1d0b032a7f0004e283b161a8b322feacaae2887a39c706b59d995e9997c6a8. 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/HKC639722712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220d52bb917546385526371d567fa8b83897c9440387772b3212d9ddeb226916. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631104129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a934fa8a86018901c6b6cc20c139da27ed3edddd7f210e4ffe79e7686b7199. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/HKC631103964.
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 0x4fc24020984ce8645a63e6acc5cd0aded8595888fbd1b5a4cd59198b10ab8658. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/HKC631606855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa618bf761ab44382fa929f3026be4a712299674143df4483865bf0088b5c7f4f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC630501291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb000b56ec50516bfd5709668e75026cbd15b6d61303b7a96c3f0e0dfd3794040. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC630300515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531ff095e52f8048ed3e8e9823153cf722c88211ee073e6883652ec06ec5e9de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC631606856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b523526911d051575fc755d473d82d28aa887423372971c018a29e5233eff9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC631606857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a30da8663536a3608b03e73065b119a3e42fea096ebd2dc82ebc29f4eab70c6. 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/HKC631606858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead394e14332be532c6e1139428779130d4c4026e5a970c4d5f6633982f33620. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC631606867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7312ebbc95247e6905e1f5fa8bcef47765557ef3852d62fcb1c606a6014c1f3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC630903254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55aec2c88974b4529df48098eca9889b109b7bb5c609b140cecd9a3d65eb32e. 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/HKC631204779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857d1c9b0b25b809447edfbc80b640431c9dfc01f20136a30f652ea5e612ffd2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC631606862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bd4ed5f652f1aec0eec181026fd65f34442adfa17edca3e5f638508f0424ea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630501294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5d29e2f205b4f80a12b17f1fb4b166243c8ad8502807d997a075f90efe706f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC630300738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b696e3e77239d1f0f493f5ad32be16d8c80bb84d281b33bb1552cc9361ca30. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKC639722204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d2a80a61ac0de9e8ea716df3dad018a6e96272c191174f2f3c5566bb9039b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKC639722205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5d8066c2eb3f0f03aee5309ac1af9d1bb1c186f27274ad29091c9507efe507. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC630702089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7fb4847a992aac5b8ef25d6982b39ef73b01a0bd5d338564c7764be744301c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKC630300746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50b6c6780c638b3c5b83bd16ae92714829a2a2078dd0c171c349e89ae198167. 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/HKC630024310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e0e5decf16ddd3cec9d82f87670e836a9155b3f95f60605da01fec2df428a8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HKC639722206.