Pacific Division, better known as Pac Div is an American hip hop quartet from Southern California. Formed by brothers Like and Mibbs, Pac Div started rhyming together in high school. Originally an ele
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 0x2aebb772c79a4461911193472aca0e4b42b80b151dfdfebf8b6e390f0a2fbb15. 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/0d7b2354-9279-4718-9dcf-c7292b3fda44.json and https://artists.proofprofile.net/proofs/artist/0d7b2354-9279-4718-9dcf-c7292b3fda44.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 0x6e5178fe0da18cc1b36ff03856557b52d088dcffdd67bf7d57c2a4afa05526f0. 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/USUM70957512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61aaeb5d72a3f5cd1a210dacd443cef0a87dc3789d8ceafe337ce0df5105ecf0. 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/USUM71100911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0aa61be98425bd48895300cc1526c37fb10e1c3b2ef44c38f6a9d41eaa0338d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USZEG1100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adb1c1ea93b5d0e984e90c2d16e43a429047eb37c1430c092122bce08e7e9cb. 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/USZEG1100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f24ac9a26a42e01c9b741f677a49ec24a4e823e2cb00c327cf531db7099fee. 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/USZEG1100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8587154e87b551d63b3418cbf772c3c261da1ac166446cb788371f8936c45ba1. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USZEG1100274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b68a2bd5ee908f5c4d6a77e5179b37f6ec330ccd87c2dc238e356ae3d5041. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USZEG1100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c5abed330799f688f14a91b960ea6039f19774aabd4ee3f82c860b12d2f4d4. 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/USZEG1100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a69ec8108a18b9bc6a2f6035cc1a40ec88801e1fe8029df6f18cfc3cde6ea9. 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/USZEG1100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c9829c319e126048a49d830691825ef2c12eacdfe8c09a256b4158e1cd551c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USZEG1100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80e46b3435e63b67459dafe450f6e20552ac5b1198825cb579d88133b9754a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USZEG1100284.
Cross-Trainers (feat. Kendrick Lamar & Blu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4226ce0266a4dc561ae79532d5cfb3b83a8cf07d7d2833ac957db574b3fe872e. 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/USZEG1800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835f40b932c3cf7de93333f207159c8d88a6c5855610abf5a7ff12d2b0078a0. 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/QZPEW2100539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13173ebb84c79e84fa46d57e1cd8c3be370a50491f89be7e829d1a26082cfbb7. 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/QZPEW2100544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78aeb925dd456f45deff5553620705d1f1c3e3bfb2da5b0a5e4690bd47583fca. 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/QZPEW2100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4e6b82b86cff6e4162b7f69672570dbc24e2b5855e8bcc1733fac714a71e4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHKR0973414.