Benjamin Howard Laub (February 23, 1984), better known by his stage name Grieves, is an American hip hop artist based in Seattle, Washington. Born in Chicago, Illinois, he has lived in Colorado, San D
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 0x4e94a68b33f2c33a1f3077f5141ce7242f599f17a7ac2455f3fa9d0a26ed0618. 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/24f47e10-4df6-41ec-84fc-f274a7d2e488.json and https://artists.proofprofile.net/proofs/artist/24f47e10-4df6-41ec-84fc-f274a7d2e488.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 0xc164d80bdae161c2f6ce3f6314d5ce76e12e3814e6528c7f3ba8c81c76b7bee3. 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/USTC30798260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878d011c7cd79dfa35a41311d55095d7ff3aa362651dd88fbc5e82041b51f3f0. 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/USTC30798261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3434e032cf3ed55a465ca1878afdff6622faf1d232af2efe9a67cf25e402b347. 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/USTC30798262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339247770f95e5d0afe746cfd3ac04270e4d2e2d7fe5bd2d5335f084edb136a3. 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/USTC30798263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1ea93770d9a38982159ef7847e80619d850eaf742d9739bb617898a37785eb. 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/USTC30798264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a001647766b665a6383c8f7c1a5972896ca59e982c7659478d470f99a022b4. 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/USTC30798266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e2c0d9c22d68a7ba76b1f517dc6654da0269acd1876b16972dcc5538d87504. 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/USTC30798267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bc1d79889fcf9e86d12f4ae352db22a3ae8a30657a57654bcd6e867e3929d. 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/USTC30798269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde034385e51994c378babca3c28f745a0c6eef581f23ab056f04ec2331bfd2e. 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/USTC30798273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b91108563254c626009d96ba1b8847091e6549a70773799413e6d29381d314. 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/USTC30798275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9100341ced91f2222ce7cbed9cf33c16a828bc26e465cce74d3b67e5aeb7ef. 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/USTC30798276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408c7ffa36b3981773cd315606651d295c88a6b68c887d5ffd2c24c1090c2697. 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/USTC30798279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beeb174c41c46401dc2b627a2e43f016b21940a35c63523d075b3cf65347501. 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/USTC30798280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60fda001721827dadbb4a08dd38191bce1fb6c99ddb4e1e02c7afda68a97595. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USTC30798282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e8abba0d8491aebe662b713c855dc596a8945b442d3094c124c51e571787c0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:26Z), 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/USTC30798272.
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 0x6dd41923e1e7532b6303475ab917e791ef9118d3ffac132fa8709714d312adba. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USTC30798277.
Capital Hill Girls (That Look Like Capital Hill Boys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10f2ab3bb857f210701c6acdd177dae00f922bdbfa28a5afcd469c19771ff6a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USTC30798268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec6c89d429c778203c6b4584ea2a791b2013540ff0c6354fc62046423050325. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTC30798281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c888e452b05ad859c4ca431869134e2a202a5c7d69b2b4471fa380bdfa570b. 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/USLD91727405.