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 0x00ce45d10c213f9fa1fd7b2cc2c9c759f5558a7cafd7091acad2b3f0238e77c4. 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/4d7cf69f-1e6e-429a-8f62-e07627b09bfe.json and https://artists.proofprofile.net/proofs/artist/4d7cf69f-1e6e-429a-8f62-e07627b09bfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
the boy in my dreams i never got to meet
សូមកុំធ្វើឳ្យអូនខកចិត្ត
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 0x1bb8a6f5c545772c3c629cab6425c7247854a69c987aeb6c09d90d7a908dc785. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZFZ62541088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48494626ffd1ef473c6afb7f9b2156f6a8ab4911063e1480920d064f7999c68. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFL2430046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cc090189cd104454577d2f95d44c0ba86f4d6c2c7024859a3736d71083b329. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZFZ62541090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5916bf1951b6f5cd21383aa569f054efb2f65dc90f3bd76f03a999b36f4b851. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ62541093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4d4f3afefd4c31f48b6aabcbf16940d0e41314183bf4863a5bf8c5503eb83d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZFZ62541095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b273b735b637ad94d81569594253c9edb4fd04d094def5b7c1a01892fec4c. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/QZFZ62541099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16dc217a519afd09b520ec98588e11b4ccd6e292b28f1fea51bb75b1ea85b96. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFN2418543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde008df977c01410893f70e7e8f83f305fd638bb92ef6ee4912a31d6a6810913. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZFZ62541101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dac2bca5d73bc927b1902d5d305d504de131ce952c9e02ac63d52ea77dd963d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ62541102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1b4182c233cb4de8458be31ebcc435ce2b3db0243208de95401376a39c2fbb. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:38Z), 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/QZFZ62541103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d402cb0fa56f3109e81178e30b4e0b2d888426591ad772c913ee7290457c0d2. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZFZ62541104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4adf987e830a690ab9c90d8903c61b8c8c0ee8401e0d3073bf95ea98981d4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ62541105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcd91b990774c2c30304e65cf694ba444b1b6be1feb28e24246677d70e25656. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ62541106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc783d278e9e2b9ec389b22958c14430fe8476dfe0c51c90d41bd43045d0c3e8. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:28:44Z), 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/QZFZ62541107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4aaa1761f203be445a9ffcb5b9e34666a36c6953b93a72a1817f5a4c0479e4. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/QZFZ62541108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1c6e2cbed4d6905e68ff23e8c5244219bc5fdc571fddd5edc365518e467d48. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFZ62541111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2220e1c602f683c05625ad3cc7d6a61f6615b1c0d8017deee671a4d5ce0c03. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWFN2418540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf788409dc6e076e3e6331bf55939e4cba9de417d2a97bb7ebecacb5856cc0cbb. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:55:01Z), 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/QZFZ62541112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8b354458925d832a3f8eeb4dfdd820b11840fa0ebf3bf41ca94013e82daabf. 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/QZFZ62541113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5984a8ffd6b281a7a4cd149787b273a2ad796591769472fe0c2ce59ba16748. 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/QZWFQ2437950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859494f602a3b4cb0b59904c5c75f958a335c82140a7832367a91adab4feed89. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZDA62581611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a040f094ce6748b2b96f35630eb9e13f73665b3e826d01d416ce8d8876915b5. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZHN72592886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6ddcfe6ea57906ab3e29b3b7b837b1f1eb57eb601b15c8507ae9a61ec0d3b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZMEQ2501331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e47f0e71010345b5f8fd62ed4be0bacf1a4bbe1468900fe4b89ac4ad6c0dd3d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:52Z), 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/QZMEQ2501332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed892bcc70912dbbc3ba55f60d262c1be7bc104600f4fd3a29ed70009bf128c0. 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/QZHN82417658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f281bcf68f9573666fafd1d2c73a2f4e77868ad5a3329c4976c4a16fa825b4. 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/QZTB82476838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3b6699e65dbce1882e47601afe08e994808d2f0c2109a4630cb971e7afe10a. 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/QZTAX2476617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f33e8fb3229190b5d2919ba2d5de0f97604c8239027acbe494e79e5263d593. 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/QZNWT2410705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3ef7ae106be4483074ef10bf3930d72c987db9ad8bd84734c4f76aa9b5cb8. 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/QZES72402570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba795136a54bdde0242206ebf7c215620e74de038ee4a03890156a89ec488e2f. 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/QZWFN2392977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76315b0188a7169f3248117b830f4432f4c04c2973b93e323f44ca65b6d67e28. 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/QZTB72381348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35c4593a351f60fd0569a2a7c14c8417887fef41df567d99624f15ec730dd7. 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/QZTBD2365659.
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