Rizer is a surname. Notable people with the surname include: Ken Rizer (born 1964), American politician Maggie Rizer (born 1978), American model and activist See also Y. M. Rizer House, an Italianat
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 0x9b6fbc398d500c9107ecb61c889f066925abfed6d7c5a55e5730a26e4e09d12e. 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/ceb67cf8-67d1-4a1c-b338-2eb0d684ad0e.json and https://artists.proofprofile.net/proofs/artist/ceb67cf8-67d1-4a1c-b338-2eb0d684ad0e.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 0xaa8532cefd54dd29e110023b5dd401205e3073ddb36c56d9c741cc6e7749dcd8. 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/NLS161802565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9653e9bc171f392887b58dae7f19559a9e3106e151654a5d4ae42a0a2aed45. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS161802568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1786852606c3f3bdfe21c230678abca9574bac85def1b69af2858789937cef. 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/NLS161802571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdcf79f7c40f45323d9052aba179ae923531e7a65107dac3a5369a0a3c11529. 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/NLS161802574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58982a2ec4fd221b54a41bce44bebe1d39feb51b534d9fdf7506fd912759a145. 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/NLS161802575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ed90edd0564509d7319af57d8bec62b4c4722b1cc1496995c7ea56cfb9e7aa. 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/NLS161802578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87e0db7f6ca16f2d2a31694ad16bda9e20ecbe43a044a2258d1f65a4fe788a8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLS161802570.
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 0xb3781878222f9624a2759b20e2d334cd778733f42ffd59081381b7c12b0fd04d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLS161802566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abdd1147b0d6912860d0d7c26dea777f0b9999b3d15233426ba2fbc7f681f00. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLS161802567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c489b25127a933c1f38a5b4daa8daaab5677877b9170c76269808b79f1d8910. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLS161802576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab44edcaea8932b48278a50ddfe06baed984b9a0779167113b4b1447d2b1b41. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLS161802577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adcd04e4ab41c66538c2ee73118ee7dde0623ca40d5d9ed42bfc5c269c588df. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBKQU2430670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5ad69050381b8a91385db2d87de7421b3a0641be05dc580ffce021e1ee8311. 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/GBKQU2430671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cffe8615ee4cc748ff920dd42a3bf42c74b8741a52755ded3f8dd9b5cf030c0. 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/QZNWR2384882.
Heavyweight (Official Cagefight Anthem 2022)
Time For Glory (Official Glorification 2022 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39373ccdd0641c3bb58b9652c1378f461dbec6e38b03f9dfe3bea65fe923bc1. 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/NLS161802954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86482c527687a0e96dc2aa72cb60c722dd4b7ba1d58bb33f76b16707f2347a2c. 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/NLS161802953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c312db0e5c2d40359abcb0f4e7af006265c3c686880bd8f4899d87b389b3ec. 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/QZK6N2108976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7118d687b4683fc38a230be7af800c649e444139b807b6ad78df02173ee5be41. 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/NLS161802130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e455f51b90ba6736c0b0c953bbf580d90db36617d897e35341f149b3bce0d. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/NLS161802131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3af8a50bf5813128a7bde64f8440c3ee5487c09c2b8db2c2b1d2e76af906436. 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/QZFZ41952905.