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 0x8fcb11e8da20f88937eb69916af3ee78369a2a707b641e4b46e16310c8b53970. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c572c5c-af09-40a9-909d-44c7cde1293e.json and https://artists.proofprofile.net/proofs/artist/5c572c5c-af09-40a9-909d-44c7cde1293e.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 0xf1ebc092e11b33e3020a914a67d05e3df672f7283a434fc5b8a043cd794382f1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ZAA029900882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5b9268d0bc79d26b67d01ed0bf080efb2afad754f23e95f9c424a9fe1ffd71. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ZAA020100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb9fe5536aa24b2532eec07bfc20c606e09ff794e37dc1c8e5c099ab2821e97. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ZAA020400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0621641156343eaf41cda6dcf1808b0b4c735724def3f0162bc0639ac7ad2b9e. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:11Z), 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/ZAA020400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e04c3b1fc9cf16a6cde5c3b5724fe3ba740a7cea7afd4e5ca2497e69b986777. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZAUM71801858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fa9ad23ba7e2627233a9825084e173a231d158f9f1c9a4837682edc3bcdc37. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ZAUM71801860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0e1bc3e42632f0bbb09649349a8c7f2eadb6ac0d2d64a83c5d1f324c139ba3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:38:32Z), 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/ZAUM71801864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce391bbfda283aba2b2b0fac51adccb00f6cc298aee72176aae7d6078987fc4. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/ZAUM71801867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e98d1957bc9e41a6bd8ec882237dabb89c041224fefd7eb06f69fc4567993db. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T04:58:50Z), 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/ZAUM71801869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01311de8caf87abef2f62b7d1cd18398410724f6194b9ec14c371ef060aaf93f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ZAG930700453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220db573fa0abe84fa02f4e8b561d40a6b0823e2f7536272cfa1b32ed039572a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ZAA020900370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4954112ab18bb0e1884a1ee26fc108b57deffbb03cf0a887b3b56e35bfa41. 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/ZAA020900372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58224ee5a57a003c2589ae8d55445ce0fb403832d7f8e01180366718acbce97c. 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/ZAG931100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58078f54ce0ca0646dcf4f4056e4e8963bf7a5fefb512a924aaa34c9ec40b36. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ZAG931100148.
Hip Hop Pantsula Presents Motswako High School
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c14b32eafa712b9823944f259a39a5535f897a7327906f9be16a78685d6276. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:54Z), 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/FR10S1841841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2737417abfbd9fb0e1e46e969d5cbf7f300953580e3feed18db14013b30e2cf. 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/QMUY41800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcbe60e80e86b1d433cf1204eb8dbc73eda9a310507b51de2377037bf57553e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZAT541800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcbe60e80e86b1d433cf1204eb8dbc73eda9a310507b51de2377037bf57553e. 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/ZAT541800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e0ec484ee4e0ee331828ea68ea63a3dd11e18e4e3b824c4fa9188903f13dcf. 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/ZAB541200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47dbc28cfaf0cfaee5ebb555f6335e80e439a53b7b4099809d10473bba097dc. 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/ZAC010900342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28713b23ae8c8d11a70dee042ec8ceabae6ca9de5cf099e61fff08f4761a509b. 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/ZAA641100032.
Victory Lap (Remix) (feat. Tumi, HHP & Amu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9181fb467c4477e6358365b8d6e5c7c377749c3bcb0d3ffaf0deb92ef821a161. 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/ZAC011100517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58224ee5a57a003c2589ae8d55445ce0fb403832d7f8e01180366718acbce97c. 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/ZAG931100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d955f64a5ff6a0e2ff71b21606c63ef60d8981ce0309e932029608d8040c0c. 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/ZAEI72000375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cad652916f5c1dc492c8fb4c952ae32ccd32a05709f9224ee5c8ee0f2bb0e3. 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/ZAA641400043.
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 0x9fdcf7da2ada750d19c1f3967016ffbd2641bab2f6035e8262339436bc8b32ae. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/TCAEQ2074239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f215a7d8126cf1d0e713ff072cf6fd9a9a3c66c7b5055152691515b71106b1a. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCACN1660376.