Dayve Hawk (born 1981), better known by his stage name Memory Tapes, is an American singer-songwriter and record producer, and the former frontman of the Philadelphia-based band, Hail Social. Career
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 0x55ae85615035e3aa317b0c2230458355bb9e0d198119a2bd703add983e5036a0. 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/76a04e50-df99-4c9f-9bd4-738cbf29abb9.json and https://artists.proofprofile.net/proofs/artist/76a04e50-df99-4c9f-9bd4-738cbf29abb9.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 0x599fed8f16b380c7d73b6fb9a9a1a57b22531fdd8235f281ab03a0598541454c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USTCZ0907214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0bb081cafedc83568b86a5595db8e825811e01d1ca7e6b95f7776af53a88ac. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USTCZ0907290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd51690eb578c5a4727e198c68945fd6d3293604a3f5cdc1b0d0b69d7a64477. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US22N1106402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c75c637ebe4707e78d1495578f41f2cdda49513cedbd4a7c754c0ca6bd3200. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US22N1106403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6330a907dbf01de1b1a727824a5ebb1a5dad02c3f67868e67f974ebe0ffe2c5. 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/US22N1106407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3e367a36d4dc1ba62fc4ea48e202e240479c7a4983a7541434ace1a00d0e9a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US22N1208102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c180a5d3c4bb4d17b33e1911d9f9e83f8a222070554c9def5ea33f7545f612c. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/US22N1208105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5165ae99791c3fb386cef4c82b45ad3226e34aa3801b52021d7ae48496a8b776. 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/GBKRF0500235.