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 0x6da73d2ed9c496a7d7a28772439252c3db2203c7ae094482a1d6d57fe1a6dcb7. 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/ab7d3034-c1f8-4595-a63c-4cb70a634080.json and https://artists.proofprofile.net/proofs/artist/ab7d3034-c1f8-4595-a63c-4cb70a634080.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sing Hallelujah (The Victory Song) [Live]
Sing Hallelujah (The Victory Song) Reprise - Live
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 0xc6645e719cf7691d405d5cfd4200fd64613828b744e25f51011a15302872a25a. 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/USUM72223435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f206e2682aa849132c5704103f343f0cc77ecdc8db0a179ed61d334cc4cd0a1. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USUM72223434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38c7a076f697819d81c6541f75f489d9212a4b1a2ca53e7a3523d15fe90e6f7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUM72223436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4d14a71b1e44469d2eedc47d9ce4a82a762ae116d3cacda27bd775b86b3e8c. 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/USUM72223437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98ff77f588c484679adcaa849cf750142b61956134bf7d2fd93b32162d47efd. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:51:01Z), 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/USUM72223439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf876ecf7a81a3fd34b24c34e22bf53f022e36834d5b1929bb0f884e4a93796. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USUM72223440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d046f777776614826ba37d6ed68fe9bfa47094f946f92049293908facfaf52. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USUM72223441.
Då brister själen Ut (Live At Cirkus Arena, Stockholm, Sweden / 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b3f453ad1e98a6e69bea69b55ba249e3a6f4692f446d5391f0eb66b1bbc1d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUHS02417076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb7eb7d195ab6970461bbf3bc45ddaa9c83b41bdb2ecbf928489da4b8f7243f. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/AUHS02417118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fcfd101232768e026aa9b41c817d95fb6737d60064333c6176b789142bc0da. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUHS02417123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef52ba2e080f8256e5503f13605931303a4372156db63eff1dbf812b769c30d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/AUHS02417125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579efcbe1e71bf965f382e7c568b28008ea00eed35395f140ffac1e5acd1d5fd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/AUHS02417127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c59e801291163d549127c3c7b7e34aeb802fd469adcb14bb0a8abd5868a8b44. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USUM72410779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b6ad2ca6ace7d40a076978a1ae607cf8d75d1a99aa9c7a7edac8037dfa1fd4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USUM72410786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fa075100e5b476edc81187b549ca93d7a5ca5832f53b1e879a0c3e23f5fa76. 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/USUM72410793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1511156985e7b9c047759188cd00587b3c777c0aaa77ec1aa0269f6f0b700b7b. 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/USUM72410800.
Christian Summer Music (That's Actually Good)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8541da98c410ed52c823e70988f2b35c930729f426e37322a7904db11b7a0c65. 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/USUM72405955.