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 0xbdd87d19a4f09765f8e36ccd65cf94edfbcc4eaa93ef4417cf39a0bdc1e71f7f. 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/fec4df08-9bba-4b7a-8399-9fd5f7f70a18.json and https://artists.proofprofile.net/proofs/artist/fec4df08-9bba-4b7a-8399-9fd5f7f70a18.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 0x76d352ee97c89d5fc056a73a06d61b44f2e7b30678a387daf37b24ecdbe86d9e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2021326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7412c9a6de0c6a5340d770daba231451a5a75d255cdc295fe9345fd42a418ba. 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/KRNAR2338775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9445d27827438e32fe622c3702c01c163076a5fe5773a1369d42becead0cc76. 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/KRMIM2258603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06a5d2eba519c8849740633f0529d62d5089bae492673a44b42ada3d120153b. 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/KRMIM2301824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc110d901d705caae465f13e286283f3cecbc5c4602767d304d5898fd5d977268. 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/KRNAR2338776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d3656ad5ba9589b48b7a1ed0f759c25bcb9e0aaf9e018a0e707743f23d4910. 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/KRNAR2338777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd2e7cf5596d53579b4c908b4562db2b0ddb7251b99315d3de00601bf6d1d7e. 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/KRNAR2338778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dd1a400c847e4703c84f18d0fb6192f6d5e7487c9855d23df3dcf0fce9dc9d. 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/KRNAR2338779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db180d1c7914882239165e30a9c530440a61756dc9c8785e0c3b65fd25b43aa. 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/KRMIM2207696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2910ff1f8749af93e33d70057836693d01300023b39fcf190cf551f9d81d8a0. 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/KRMIM2129759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbbd90576feb0842da79e700fd706b0913267049f98bb1e5b2908c8bcc8c88c. 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/KRMIM2207697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b7329a5d31c0be5fd8d976998ba55726587c9e7436ae86c4cabf4cc2439a4. 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/KRMIM2033288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535619b7dc2ca75bc79ddbcf45fce839a299ae2f29671092c88653ef5cce2288. 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/KRMIM2033289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc529148f0f3f441d16c88403b728b23320f51c2b23843360f85c0665bb30333. 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/KRMIM2207698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131a3904cba5630921a3049abbcd162cdabe33b89a82f09c8b9b3e84c726c224. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2207699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe02a5fc49e2595516813ec2327ff434d56f9163e7e19cd3b0680d2dfa55f2e0. 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/KRMIM2129758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41057360454ec75d5f9044cf58d90b084ec70f69bb6fc9884d36bdff63481db5. 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/KRMIM2207700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57e1551e173774b9badc0ac58fbf89bd845e9c011b412ae4da83f385898cca6. 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/KRMIM2207701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb002a5e88cbe3d549dc07ed669cf535760d61552866948d99af75289e6a20ee7. 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/KRMIM2207703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff053ef18712ed2b6161d6618476cfb55039f9f934a2395ab41936a770c0ecc6. 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/KRMIM2207704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7645f1e645b60421cf6fcf004f63ccbe532ad5968054a302d5e79ed4c4ca4045. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRNAR1707810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e05d212670ba7155da8b552476c8798ac907fc4d8e89fb3cd502eb66c22477. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRNAR1707811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34a39e3e4e8a5c1d38b6e2442c7b6fc1db97addb57e40fab3327d522e8feaf5. 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/KRNAR1707815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe3f764aa0d79fe9bcd1b457ad20dd1b1df30ddfc23d5904c22b7de6631f66c. 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/KRNAR1707816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339c33511f8c32cf3da941b0caa85f51ae6553ae569afaecd9c1d5e8ca5f570. 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/KRNAR1707812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62df9c771b0e95f5c6471e44485be016119b83459eb14644f07b86505f9318f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRNAR1707813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae01c8529ce9b9e1047a5fd996f980c5150c44d78ba3c5512ae8834f83af983c. 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/KRNAR1707814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e24681c67648d4c8d1439dff603550ab344637cec71b3d5f47044fb0e19bb1. 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/KRMIM2351675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06a5d2eba519c8849740633f0529d62d5089bae492673a44b42ada3d120153b. 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/KRMIM2301824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9445d27827438e32fe622c3702c01c163076a5fe5773a1369d42becead0cc76. 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/KRMIM2258603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff384be71672fba561625472108e801b371010e860db6810166e6c1a5e282234. 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/QMDA72144739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe02a5fc49e2595516813ec2327ff434d56f9163e7e19cd3b0680d2dfa55f2e0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/KRMIM2129758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b7329a5d31c0be5fd8d976998ba55726587c9e7436ae86c4cabf4cc2439a4. 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/KRMIM2033288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535619b7dc2ca75bc79ddbcf45fce839a299ae2f29671092c88653ef5cce2288. 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/KRMIM2033289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131a3904cba5630921a3049abbcd162cdabe33b89a82f09c8b9b3e84c726c224. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/KRMIM2207699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437dd791366b99ac623d938f8982da5cd82262bdfbb353aab5911b632fe7a6ca. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/KRUM71800443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437dd791366b99ac623d938f8982da5cd82262bdfbb353aab5911b632fe7a6ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRUM71800443.