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 0xe1312084bfc347faf2809d1a79eb1412ed1d67fe11f4172e885661a18e603ded. 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/cadd0158-1f55-40f6-81fc-302ad320ed6b.json and https://artists.proofprofile.net/proofs/artist/cadd0158-1f55-40f6-81fc-302ad320ed6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
我爱新春音乐盒 (20首喜洋洋水晶音樂迎新年)
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 0xf02a6a156028496fd3f1defdf31b098853c325ddad309d845c55a62618abff97. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/MYMT21700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f220963fc3c4a0a77cc4df8d6dadd51302cbaffd56080c4a198c1635ecc027. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/MYMT21700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea215d1b7325b550a12365a74a20a8d8618c8dd5f610ae5f883480db60c17fa7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MYMT21700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac5ad83c66664230d961f96f0858a2caaafafa53e1883f621cc63d4dca2f7ca. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/MYMT21700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e24458d71d484d2cc03c229b949d7e93ff45d0b34a7d3c290d8258beb92b40d. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:29Z), 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/MYMT21700174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513194a5f712844e9d672e999548538e98ec3d9973c6e52adcea02a64225ed4d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/MYMT21700175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99361db33caba068ad7db45b847ad30cce20c81bd22ffc60cd97f07d06b3323. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/MYMT21700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdb4d15b7f862f405b1f7ae0387b609feedf9999f74df537b2ca4b6c17cbf30. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:54Z), 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/MYMT21700177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94fc0edf6814258a94646094e91f9606997c57f3fdb7299adc162e2bb09b454. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/MYMT21700178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee19a3e08adc526cabb28fdbc0f3bb8ca979409cac2deb7ae8454032e4be8b4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/MYMT21700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c6a70584a2cf75afd1ba9ee450f122b95a8d2c2352905d6ecfc2e0a14aadc1. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/MYMT21700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02997ec5b10f848cd3e72b8e8dadbb6e5fc5afa8b9855210d8574b3f34983e7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:27:40Z), 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/MYMT21700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c98e0de04151ae5e58a73a75c4d43d205249842d4d65c723ddddf619412406a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/MYMT21700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84094e3bfa07905b1386e834917d05f667f102fa4949ca94e84e20e2010c6063. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MYMT21700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c91cb13b1d86419450e5c685e5eae094a296602bc5cc4f7a13a8a1c1afc6b2. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/MYMT21700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543861658dc702c8ba055bc9ff0f8ee87197835416f341ad93b1b0969ccbd5ab. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MYMT21700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02d61a15abcc8cef7758f9cd4d190572950d76711dd5b16fbe63332613cd40e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:28:29Z), 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/MYMT21700186.