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 0xa44c202944230dd5b89bb8cbe8e0cd160f839ddd5a1e2e0f9e24260339f837e8. 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/48e8bde6-9d58-4461-a058-0e5626a1335b.json and https://artists.proofprofile.net/proofs/artist/48e8bde6-9d58-4461-a058-0e5626a1335b.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 0xee0b0a036821dd02f10c455086eac3650a6af16d8b16d8411481085b9fdff48a. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/FRX202443768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0e3298b3e9761cfe65368b690a9ccad6235225be8e803035a291d430db8f34. 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/FRX202443769.
如果我们在余生相遇 - 十二星座合集
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3c8eb8723e482c058ca323d22ed949526d8920436ebd6fcd29a3bb510299f6. 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/FRX452424092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0abb1b24eb1f6c468203d4827c54e0dc2cad66f738f49b8947f58c61735b5c4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX202443766.
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 0x8e35f8a42376d999d4fb5b69b549819c64f254a66a7a4f7c8cf95b8a59609d31. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRX202443767.
如果我们在余生相遇 - 十二星座合集变调
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5179d0e551034f190b35758710e192690a9eee671bfa7b99884eb73dcfecce29. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRX452424089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf230fee2590dfa03f575e7066d44907d0ae18378782677765bd34ffaacad43b7. 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/FRX202448610.
如果我们在余生相遇·白羊座 - 变调版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418e1ef5cdcf1d69aebff94c37807f5675f268fc0455c6acf761670eaff8bf92. 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/FRX202464876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cb3ba1d9633224594f3f2519d231e572e01efb6ee4f729b6e5eee41f595d4a. 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/FR96X2415420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f334aa44a18680df102df657ce914d52792c9499864e3d1645c184119be9808. 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/FR2X42455450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adb95378095b2b2da003680353eebe7e726238d539b642a041d9ca8bf2ee314. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR2X42455449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa06593224873302909f03f8357f37f5805890ca3c672102d97d305795c7d4e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA062340975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8a2c0adb8cb4fb58416e90f3697b7c45fbb0ccdb4a21b7636875f244ad8e37. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA062340976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb37f78fb25ae491bd22ef0b2a3eed255d8dfaa416bdc5bf14dadcdc71623bde. 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/DGA062340977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1bce798e717ad582c44dd6a7533c6668623663eada1385637e5488fa31174b. 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/DGA062340978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94754451ea825b23e9f695e94e36c7e59f1d41b2d8b50b550e5976715023c4db. 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/DGA052414663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2b9485b00e6d33e819a23c81617cb8c7f0766ecb0c39f888625cf427aff160. 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/HKG732426009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03ec9cfc98069137a0d14b48150913bb193c3f0d2309455b0d35973312feac8. 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/HKG732409793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689cb7e5a435d969cf3b90d6d8e9baa93ac1bb110edd1fac317e0c8300965186. 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/HKG732425915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b01fe8fe4611ba9e352ffe9240563f699db9fd789c4e0918a8a15181f6bf46. 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/HKG732421225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59583bb738365d3d7a074765303fa8404ec1d5e27c254fee9318aa33cbd0645e. 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/HKG732403516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73a0711e4d07f219b5c08929ce2a0cff99d61aa38f62c369d89aa50f37cb7d0. 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/HKG732403515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d0f1f2068f4a76767a6d16cc231e92dfd5f0e45135cd5074c7579aae240fa0. 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/FR2X42491409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5bd889ee8328a29a59ae3c761360cc77079d45f324f7f110634846e27e7ae9. 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/DGA0Q2399932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8f1b2f8c56fee8a7237be158d784823fb2cd40399502caff12a69a150d6465. 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/DGA0Q2399934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47b02bfc78d4b0f36b87eaacebaa87f6ce6549e24198b50b0e7704476c0291b. 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/DGA0Q2399935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f1d94bfc35310e6d91d3fed3f4282cc19d254b2d44314cf87b86e6f7c91910. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DGA0Q2399933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c8671774ed6469229d1b282f7048f42977e97da6514f3c589dc343213ce580. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DGA0Q2399937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6668a9e75bbb2c5372db581d6f414c5f2e44a14efc94abf2295cb3b451b86d. 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/DGA072381278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605622cbe2a515a06ff4ad3c2d64d4c111cdf13c1c11086080380a5e20d8e15c. 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/DGA072381288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dbd78838d2dca95a1cb68b073ad9631857c66e4fdeaf16c394e97d613b92ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR59R2341918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139c5805c73371fb668b152aab3b80889aceab9b9aa96d4cceaf6c7d0014342. 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/FRX872201503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74547b8bf9f94dea3a43992f2f508266e5e0428a0504b412186e55751630e6ee. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX452518425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc4f8bc95240a398c6dafb118acaa8691f65a500abcc82749c4ba0acdd43f7. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/FRX452518426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c709eb1c47ea17280faaba9fcf89684b6daf461f957bb1cb90978565ed68481. 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/FR96X2569618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c7471b81d5bf1884454972ef46874b00eaf59fcf0051454b6422fb27ee508f. 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/FR96X2569619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f747565864064f297f35feb22518105df5abe3aea423a3b167e065b9810f2d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR96X2569620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf2a0593186787c7c9452dae659957d5fdc7eabccffa9038f30d8bd8a31a248. 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/FR96X2569621.