Terrance Hamlin (born February 10, 1977), better known as 9th Prince, is an American rapper and one of the founding members of rap group Killarmy. He was initially responsible for bringing the various
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 0x1513b67347fd420996d96df4d3775a49105d9ca8fd56f0945b14d73b74694fb1. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6717202-7146-4878-8af6-91539f133aeb.json and https://artists.proofprofile.net/proofs/artist/f6717202-7146-4878-8af6-91539f133aeb.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 0x3b0a4239de3e6c66894a6fc95e913c42b32270ced477c17e60db2a0ee7f183d5. 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/QM4TW2170052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afc09584d3eb188acc1641d13613d2de50c5c05da071663ef59517a38aa4f56. 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/QM4TW2170053.
Generation Next (feat. Killarmy, T.M.F. & Ruthless Bastards)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dfdd9852a0026f285813da91e2e4af20fd9128b76fa23e2e0916e00a5bbd03. 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/QM4TW2170054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d34f7d6212112c45daed2afd2d901698be6bb32512312ca6187089a27ae5dc. 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/QM4TW2170059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424aae0b0f99841a4f27689f0f47da64376a4a73e613d7e3d180b50968b7f4a. 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/QM4TW2170061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a9d9467835dc7aa43a20ebb2ab5a814f2d18262ac2e81a113b1ef725e9cd08. 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/QM4TW2170062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9bde7f518826a36542ce16d20c83145a36e8193604711d3d2948dd26a18d60. 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/QM4TW2170063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94666157933371d513075a5a1064f25513e39a2b4ee8a650d2d98469a4d94d35. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QM4TW2170055.
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 0x8a21b4c0843400fa13088eec37282e732e3f5f668b72d9c06172c6c13a44b519. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QM4TW2170056.
Kill or Be Killed (feat. P.R. Terrorist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e38e4b835bc55941e4bd56695cf7e5bb01879465e4565bbf5ae0e67d5f2806b. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QM4TW2170058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2940a6e97f56b7d568fb6dd3c61758cf1fdadb5f7734419df264b4338d39040f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM4TW2170060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833e322ded7cf757b9c81448b99d93ba545a8c4ef489c1516b500ff304e2f01b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM4TW2170064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ec1047422ff3b0822f9898e079b39d421d95fc38b943c4c3baf0c49dbb4230. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA560857451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e25fc6616e213a959707db334644b031bfba3a0666e719e6c0705c3ea4b3670. 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/USA561045579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8213afc81ad3bb0dd60088771df8a35e019fe5090a367f5a9901276752f83b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USA561045583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc794ed8e44ce4ed6b62152779e94da50280092806224e7bf308b7eec6db1894. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA561045585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762dcf3e53c050fda79c89d164a95527508acec6ea17709d5e1bb4591d9fa09f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USA561045589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc7565921b85dde0a9fa66eff418d0d4a635cc5f1f469e20294699bee7fea3f. 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/USL4R1937562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56efca38469175976b24888910be3522bb5423b22deb82f6ea3bc96dc4ad8a40. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM22147796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1898762cc02fa08f05592ce4725d9edde2d223213a7402fb041bee057ee2d. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USL4R1937564.