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 0x7c66a51eba614d36fd8fdd542efc2cbf495c7baa1419c931ea6cb7f666fb572c. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35fe3353-d96b-4bf0-9f68-718dd37e4699.json and https://artists.proofprofile.net/proofs/artist/35fe3353-d96b-4bf0-9f68-718dd37e4699.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 0xda2ce59cea8b845fd2e57ccb64212851dedaffc371fa5bf59b02041434149f76. 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/HKI491592004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b184d613b8376eafe81edf346687c50c0aa6e860a604152a8497a10fd3c15e9. 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/HKI491504453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b500465a2f9d4c153dd93d739ce4161e65975d53f940ccb55f2ba7a54931057. 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/HKI491600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa587163269265b3705246e439c752b94af8b4d2a3b0a4844573d4802ab85d1a4. 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/HKI491600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b93f95fe81735e5e8037cadaf0adef839a71864c4b4fc4ba0f32e342c4fcd8f. 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/HKI491505113.
David Ling Jr. and Hiroshi Goto (Denon-Nippon Columbia) at Avon Studio HK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20116bf0ba148ec6799fdbc2e12bae920cfbb69ec3b62fa92313123b6272b21. 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/HKI491600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445a5d4b0ab5a3c51a5c7d3ff3a01a26297c8afbd12b5c4a0ff985bebd74f7eb. 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/HKI491600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49adb5533029622007a0fd2b59fc368c36bd30c34b89e5ffc8e480f38f458b3. 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/HKI491600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e6a1bac68d34be12029f2227727001fc4d97290d0505c340eaceea9d373b14. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/HKI491504452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9694185adf1150361d6ed20edbd30669642df80d2458ce8abf1bca4221f4ca6d. 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/HKI491600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0e02d42ea72e7e3892868f1d1f4544f8a24f407bec7b40666abd80f7741980. 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/TWA539201704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5359f9e6d01a34fa64e19753af63d91c2210643af98247cd93f0f6779b58ea1f. 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/TWA530112026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a9d53d4429932403d6c00ccdfa48b222d0205d2d64d11cff61b946e8f7c79d. 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/HKI491600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3db79e95842f7582567350529c0de66ee8d4a7d91cee1cb5c27c1b9b2056a94. 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/TWA530317801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7fa97c5cf130c00f5f8ef4053b8f956cf98d150a9b7cee9f6aab8a50c30e3d. 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/HKI499602201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c08ccda8543768f7ee5891beff390a767c2c026ed6ba082a35410343f7f2e4. 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/HKI499618102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea022a6ad219bb184c9e33bec59d71f9ae9392dccfe02b3e35cc0d9addc716c. 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/HKI499518205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad62516635cf6d4e91c52544f3f4cd5ab9368df4c3364c58e0928af6ea895b0. 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/HKI499618107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb344257a4778cde5e6a86272f735ded50191dc346a657c431d0931fba0535076. 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/HKI499882128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946db2224f292bf9b33f6dbdf5e3e0bfb231fd0b7bf89d74d4bf78600ec59d0f. 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/HKI499703215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7874592a3292ae5cb82ad56637d8c0021c3819b0cd31354bb4c386272b6aae50. 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/HKI499503230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa39a037e7c251c0ebb8eab3e8e7a248e0d32f23cfac7835aae941b7366590e4. 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/HKI499404101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598f68b4164727fdeae0c4ddbcdfaee860849dfd0d3480a6132298608b92f8a8. 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/HKI499504119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a343c37fcd516523edc65e897a668b70063e6b7d7553a4a62eb94dfc77e392e. 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/TWA539850312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c557c32f6f8f8b86d5b18990192a50e7875c259f39a3b473b5638a08eb7952b. 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/TWA539128102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4db59f6563ea45dddb83a2e9edd2276b6f6e7e5d98038dc3a885989f7dba0c4. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/TWA539128104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55234bb651af45ec3e5965d84ce3593286d0c3105ba50d1af1b1f0f8bef7dd45. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/HKI498121104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73529ba1111c79cb66eada181b52baf48da785fb96da8ee91097411c4346e98d. 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/HKI498021101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7209a3a3dc781fedd39a2165f4ce9931c536e0e736e8d943d43a5b6290f427. 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/HKI498021107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0d6e56503b7107f8e9e39014da8e6e33373191532b9e2445369966c195937e. 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/HKI498824109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb726de540e587fbd2958d2211fc5226ac477a9a20747ac378e047cec9901b564. 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/HKI498924201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22fa1644a6110e510082e07dbbb8375809d89a1e63d3923e6856f01ed36895d. 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/HKI499126101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda05fc6c50d424d613d288c2028eb895cec3bb26029658cf775c07cf6cd4d3db. 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/HKI499227105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07f591984e9c66cf0a9ae6ed9cf36b24240761caf0837123c2ac186baed0f63. 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/HKI499223103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85ffacf07a0cce8106356edfe74a245c563ebb79ae63e9e621db4cb8140a5d8. 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/TWA538692304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a485764b719b2e75f617120f8f2cfa81354cd40de30a9b2bac68aea7db4ba3. 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/HKI499936106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04b82d6caab761cc9dd86b41b23ae0aeb53c2b8f84398d6edb9598c2a88c412. 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/HKI499936101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64df04fd8d70e72944e535ee0b2406b98624ea90516f5beeb3b377dcc0fc8ebb. 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/HKI499936107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1746f499643761a8759affe4a876bd424a5f3817f788895a1013645958078b62. 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/HKI498729109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d002af30bffc518bf636b4c9f8b01433e343d7018d8ce9d2c950e1b11ec4d6. 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/HKI499030101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f6360e5a7e39d96a3b546c704a0b7fb4b1f0a8beb79d19deb308ac189aa058. 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/HKI498529101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a391d0489ac7da44171a5de042c2079596c06b56fe3203897f3ce5f8e6f6f0. 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/HKI499605102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660d13af9d153247210c395e9bfa0b5dcf65fde342989839f2ff959ab67089d9. 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/HKI498935201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711b328bde775e3a10cf7e9eed9bb9d23670afaa2cfbea0d5e0004a7eef5682b. 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/HKI499405201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efc0435cb25037864035a9c1bc60489154856d16829f24c925dea7bb77fff21. 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/HKI499123101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6857cb4599ce63641816ce31c6898887f960698e1c77913587021f35575bc6. 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/HKI498733102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66367ae8b728f5508f74ae12cfcf4266d38ebc08320d22535a78ae87abc99f3. 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/HKI498935101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651e7028551328e9d6525d92fe05896bf22cd793273fca573fd0063b433ee5c. 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/TWA539900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b8630d566b97c7b084ca5784e7cfb544670699e3f497feede4145895d4a9f. 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/HKI498729110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ab841dfdc6622b6d89715cba8074bcda9a3cf3768c19bbe30ba00ec258cd52. 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/HKI499323109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651e7028551328e9d6525d92fe05896bf22cd793273fca573fd0063b433ee5c. 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/TWA539900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc525ca58bce5f1ac5f6567cef7a66fcd726c467cfbbbe8bfbc3a225f0304b2c5. 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/HKI491592002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990889845f92b26d31d046c2574f68c30ef6557fcef2444d0cabd8d30ebd23fd. 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/HKI491592003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2ce59cea8b845fd2e57ccb64212851dedaffc371fa5bf59b02041434149f76. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKI491592004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9650325a2c643c0741795a22647e5301af4e2003bd49dd85112c052ecc7c2c. 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/TWA538900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a743cadecd2770fccfc9aa61837455db7190a50b501f5e90d1628d1f392d4c6. 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/HKI491592006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a9acf79ef7a08e438054c999657512005c7bb091b6d75e8df8d2cf06265a8. 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/HKI491592007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1518d4f9358cccda7e595af8c74a3fc6a1dd1f8b57827664acd1af817f0d461. 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/HKI491592012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e805095c727192c018982256924fbbba519015c7e52260686f360dab565973. 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/HKI491592013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe807a6d3da252d056dd7cd4cc4c2dd930b8b09a47cbbbb088176d87df2389460. 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/HKI491592015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996ca1aff674e39312a0336362136e62886a395adc900bf431b73bbb24e28d1c. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/TWA538900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0e6df2a7302770f7e4a5bd8ab42265c9c7307d81b153f42485b5bc9b7b88d5. 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/HKI491592017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082045095c0f0055916837c7e9d985c85d14cea2b80280265003606f3ffbfd98. 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/HKI491592019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eec8b9bb81350446ddf89917fb4fe04fb159aeb88d248a51bad476d7cfe677. 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/HKE971608001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bfcaf62042476536dc932564ad351ac955fe20b69616b81326853058c3180. 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/HKE971608006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623a5001fbd962ffff7622812169ef67301b32ac82bac34b55a983daf90af8f5. 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/HKE971608010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfdc08e1dfb58c709c8ca0fd647f8a8b0f55f683673efb038731f8f84cd2a3a. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/HKE971608007.
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 0x621089608e10774ed1b7472954605bbe13a105ff2f552849f54c9ed74633a986. 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/HKE971608002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fc9ab65c008e2936e4bd20a31cf0d331e41e4b10cffdd49df9119f11ef992f. 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/HKE971608004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5ce1c334195b67db7e49f3fd747e109f59abafa38d48b5cace135718530163. 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/HKG482410877.