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 0x0e9b8867e19497850145f8687cf3422aa97f7aecad07825d38340135d5916544. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a3b78c1-1dcc-4d18-a6ac-6aebb31c431c.json and https://artists.proofprofile.net/proofs/artist/7a3b78c1-1dcc-4d18-a6ac-6aebb31c431c.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 0xb0d8f3b25a7c2ea894b128af8418eeaf512ee81cb165e27d3f06c6f8255c2af2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ZA10C1900004.
Horns In The Sun (feat. Mo-T, Brenden Praise & Mörda) [Thakzin Remix]
Weekent Sun Sets (feat. Mo-T) [Horns In The Sun Remix EP]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112afc0fc5100c49cf5977182196caac8b1412862ea2e702937ff75c2a98d7e8. 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/ZAW742300003.
Horns In The Sun (feat. Mo-T, Brenden Praise & Mörda) [Thakzin Remix] - The Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc178adac9ce3430303dcc91356b6557e34122fcf339dcb9e69bc5bbfee5e2bd. 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/ZAW742300004.
Horns In The Sun (feat. Mo-T) [Chronical Deep Claps Back]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbe7c7ab9308b40783f44cc82ab00da8d0d44ba202325da7c5178919fe0881b. 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/ZAW742300005.
Horns In The Sun (feat. Mo-T) [China Charmeleon The Animal Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9562db0f0cd6a2f05df74e3b6c867d740c3d0ef7aa14169ed17cd1234d3548ee. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAW742300006.
Horns In The Sun (feat. Mo-T) [China Charmeleon The Animal Reprise]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8842c57287a322333a16da8597b39ce0068804480cee5b06cbbd872685570fa1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ZAW742300007.
Horns In The Sun (feat. Mo-T) [Nocturnal Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1231976c797e4b37c906e80f430729bba99be0e63de695ecbb975b7b7fed1c. 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/ZAW742300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5d82e495407a31e97147bc66f7d33957b5fdfb947ae8f033cc19680649ef79. 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/ZAW742300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029d2d8a5af4e26df0615c5a77f8e9949f5a94d6a7d8363ce081626104ce6243. 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/ZAW742200001.
Horns In The Sun (feat. Mo-T) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba2b4cf675ed24762c02144093f341377cec837512d4f6527c9530bcef0aaaf. 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/ZAW742200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11f84a4af7411f49517d86379a8544d1a22442077fc71326c3f0ecf30eb7a26. 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/ZA10C1900002.
Horns In The Sun (Amapiano Remix) (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b0f0f146c1165cc4f244e5a99ceea86974eefc1d67d1668db38c85cf8b8789. 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/USA2P2423820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e1133eb8dd52b18216e94a7cf0bb8b88204ebedf326bac9984d847b6fb0542. 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/ZAQ652302498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb1770d12e4a474bd5108fc42ec5dcf5f9fc2e41ddd18f2172c55dc6752a44a. 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/ZAR7A2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2528afdb16834677c6d5af25b165916068f5844852f1e20f68b87c6d818761. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZA59Y2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5572a8a62ce2f0e6d9167105a50a20ad1e0a8b01b4209bb8fa0d2ba2635f4d65. 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/QZQAY2380804.
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 0x5cab5889d427eb94dcc54b049034e1e72f23387760a2b028d1776021d6caa05f. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/TCAEP2075818.