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 0x02df27f6323261b7d2b8a597f914995d030a39ef4d238518fed0fa9657c38c85. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/038677be-c852-49f3-8f2c-7cf84b14ad32.json and https://artists.proofprofile.net/proofs/artist/038677be-c852-49f3-8f2c-7cf84b14ad32.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 0x0f5873eb7f631e166dc40058b2ad63448cd482190aba3f3a3ed6dd25fb4fae8b. 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/MYHY11600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af7c4707e72cf8b65093cb83d420ced318fae81ea5f4164bb52f872a8d80e3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/MYHY11600008.
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 0x04e9fadf33363bb11dd544777062849ad8f1617929446e7981847aafb6dba972. 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/MYHY11503148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e624afd9225dd296c0ee1aa5ea3f28b3323279341cef84ed341632bca2e809. 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/MYHY11505758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98af2fc8b99d5b2e770465c60a43a0bce3e965f259d8962cb923cc13bc1a6b4. 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/MYHY11505313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bebc2616c9cdb4a4bbbac331909a90e6d11d2b588e21d00d4471048ef87948. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/MYHY11505319.
站在高崗上 / 多看一眼 / 月桃花 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5762eeaeba4b4247746ad8b87742b8051544447d1edfb91427f749399280248e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/MYHY11503842.
打是疼你罵是愛 / 愛相思 / 愛的波折 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6aa2fa18ac36a8fd3ac8152d60764cf4669e74adc6023b224290918032aa6a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/MYHY11503840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f9aa1c136a7b4e69834b0476f96c45b0d775f3d645cdb00edffdaba0ef0ae0. 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/MYHY11505350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b435a11e0a062d41a4c652dfc9edd56778b64c7a9ac613c8d5e7621a556e4b. 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/MYHY11505352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37db0bc71a5d7acb6f19d31e92d3cfe975398762f49d998c9133a8e0c8af008a. 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/MYHY11505355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe25e6e7d81eedfcec0c0656c1e5fea0a49373d74a8cb18a372de911710c2ed4. Chain 2 (Bitcoin): anchored in block 957242 (2026-07-09T01:00:33Z), 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/MYHY11505356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3199afb15c0bbd82a76511fc8b8f0aea526fe170feaaeb8ed6520428059c85d1. 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/MYHY11505363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc466d1c18a55bb172915c1a4e3e7421c90f899a4b70908573c44540093bc21a9. 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/MYHY11505364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998442fece982ca1d14c3437533c6ba2a312b1e9a09849916ab027968c2d3c51. 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/MYHY11600525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63ff2a52a008e26d92f52cf5ebaaeec9d95abd58db64fc33e9bc03d717adc2c. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/MYHY11600517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207d3aef36042d76f0b1ace193f6971c200b6b00130cf26327a2f85bf661b42b. 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/MYHY11503295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce3e904c8e97cdcd16fa65c352c3d0a0bc328ddde2bd98ffc1fd44a2cd2f0b4. 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/MYHY11503299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf147acafc6b9aa71f4eb9eed97d1cf303fe05f096b89137c2a8c22b1a502fe1c. 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/MYHY11503530.