Void may refer to: Science, engineering, and technology Void (astronomy), the spaces between galaxy filaments that contain no galaxies Void (composites), a pore that remains unoccupied in a compo
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 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 0x47a85c1cce8c45f4b224d9edc1fd45e76a9c30b28605f104c622477c66db65d5. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4da581c-6d43-4eba-a323-983206641576.json and https://artists.proofprofile.net/proofs/artist/d4da581c-6d43-4eba-a323-983206641576.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 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 0x5b6f50c7c3a1a6db09bb75b371193f455d6317b3ad402eedb0ad6a9e4ab2c29f. 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/QZTAU2179310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e506251246c743d2abe8fed98136308630cc474a06d18f9dd40c240b737bb86. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ32340497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55a3c1949a79ebb95f415f3e084f23551c75fa5312d6ecb7e2e1b213a60b6a9. 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/QZFZ32340499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7607b64a861be1a9d53a2a60be94b58bcc0ec66b814ea6cc09aab52042928. 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/QZFZ32340500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf517af2454db4b7ad4e96eeea920d482fce157c5153cf5150434366ecfecb20d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZFZ32340501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53be1a28995053b4aec126eab72ce52f60554b8173c4e49e03e4460eec8faefc. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZFZ32340502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2804e803ced1292d42559b84093873e0afd98b2e1cd0c2dfd91cce1be33905. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZFZ32340503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696406306d9d6c8b01d03f479ed12f8710ef9c63067d92d9540dc6fb495ddafd. 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/QZFZ32340504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa0ee483cd6d3545d02340b555001ebecd768997ec5f70263ba2aa41edcd609. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/QZFZ32340505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4177ea798ca0f307fde0ae09a61c1b87c666b59e3a091b3672772555e43b6154. 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/QZFZ32340506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3decaaa3c560a3ce0c13107a392ed38dca609d3d0f6fa7686d8510e4cd3c28f7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTBA2389094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164973c9016bd3122d58dd88f70ddbcb02f82e34ec2ecc753128ba2e20e16cfc. 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/QZZ7R2455102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f0110a43f96797e160e23e5f92bb396a574a56d498476ea609091b2f3a3101. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZNWQ2597184.