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 0x03cc47f890504c694e25e0a8a0e9ac0a23a9c3081810adb4e7f561b6b11f61d4. 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/503f2787-0e48-442c-86f1-1752fa7abefd.json and https://artists.proofprofile.net/proofs/artist/503f2787-0e48-442c-86f1-1752fa7abefd.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 0x7dc418c8b0ad98a282a282a2ccae4dab4169f1d6b369c838b3196e7e77e39bf9. 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/FR59R1858799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361d3af000a873d131ace47b11f9b241f3f8f2f27e980163ad99b88462afb221. 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/FR59R1858800.
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 0xb9fc948ae802ef6206607c3e388bb077ca546bb97c995f5fcf7ddd743fa554b6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKD012481013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbd92c0e7fdc2800be3356554af9479beaeb6abc6081a755c52911410189f0c. 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/HKD012481026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa105321087311c14ea1af201e2616489256afea936270442f9311cc86082953. 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/HKD012481016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90dd9abab1f1ea2906d67b2ba5e3630c9540f9f218ee71ddefd01cc7f2269ba. 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/HKD012481025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548be80eb4549dcc002c0974e64d308e7ece5a23751b96bf45bc06f751f63cf4. 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/HKD012481023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e38fe3cb35298997961bb98e0db9b49dd4bce73e8a7db21925deb6141ad2773. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:12Z), 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/HKD012481012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e12bb281c1ceb95dc5edc1bf8c82ccd767bbdd1d89a0d71429a7814198a94e3. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/HKD012481018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b18852823b1c2d4f7c2775da814d9b8dd6267b45aac1f886d4504fd41a44d8e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/HKD012481015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58302c3a4d46c8443ed534021475524a260cabe1b56af1eeeed4c92d0b7d94c2. 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/HKD012497461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb357df56b9dd7ad3712e2da9187b91a5eaefbfebffd6828ddbb725ecb2c980b4. 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/QM6P42582880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14087d3279eb8aea0751307527882d61ca6881fd8145028ca7fc79f4ccf1320f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6P42582881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf515749f9e81a76653909735ebad99dcaf8a88bcc4720b72081dfe0fbe228c6c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKD012491204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6690cafe95113fe65d7a87b69f189ce1858eb836f6d0f9e7ecbc5081308f6f6b. 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/HKD012473747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898a7e353cbfe7764fb979466be8fb75653f56ec837d2f358d4c0905d9f6c5a7. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/HKD012473753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27268bd637394e231182248530bd27fc5361136fafd5666bbd4d13344c41382. 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/SE6XY2547153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc378b4005e3413fab403bc8be67775b93347992467d2e21a86b7402416e83973. 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/SE6XY2547154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708b50622ee08f878c2384b6b8b4ed489e4f3e322032f8e79df0537c9a693928. 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/HKD012473438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a872b4fff0f6718aa11e725048272b36a22b33706d993c6a8e6c784f5048ea. 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/HKD012443105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c7cfb223ddb8592f32289c5cffd44825c552fefeac2f2c968478425185cb6a. 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/DGA0R2333939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2194fdeb8fd804e1ef411c9d64796e63710ae56ac25fe73beb4e4afb235681e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/HKD012376775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a39c6afd12901cb92e74da026549e8e8183af669d8d1e97914b19630512a1b1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKD012376734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7fc3b19633a6bae48c01efb5db44dd5059ecafe74306eeb78e20fd7501f097. 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/HKG731614862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d82c0fb10002703b21e267f88dcc60b94533c417731f8bdb2680feef53dab4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HKD012375315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2853089ade1d590d22423cef437a4fa5a0ea11348947dc12405eaa321eb67ac. 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/HKD012375303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0383d308ac581ebaa7dab43fac6781818051a8f774d995db49441ed3d226917. 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/FR59R2080478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b66527cda5fb22a0c8acdfe104f95f50eb71a158e83620363c3f059c5a95b. 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/FR96X1873459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451e0e06e7ca6a0b8473e3b842c109ad00a72d5f019cc4b61ef2be600c3feb59. 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/FR10S2168487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584b970082be0c66c4d7d58ab2d2cfbe35d6ce0ae65cef55a69d116b5ac8dfbf. 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/FR10S1960434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9bd4d96b39bc365daf556525a3485b611bd9a2ee20dba9e4111d730d8d0c44. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR96X2153514.
大周小冰人(《大周小冰人》影视剧原声音乐专辑)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cd2a363200060ee803d4269a34eab6f89a71a8e991b93e9eddae2d3a0499db. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/HKG731764051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e20eec2fdaf8e02e361d7241fbcf2d27eed9817aa30910da421c21728b3042. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR96X1873477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b79318c4adcd1f14ea32f3a62dee8d66efababdc2cc7d7eb69556bd13ca00e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR59R1886938.