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 0x99bae7fa50c168ea285f6dad793b1febcc2e3d4c810722f700994922845f8a69. 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/0adce4d5-2c82-425a-94c2-56c0e3504fc9.json and https://artists.proofprofile.net/proofs/artist/0adce4d5-2c82-425a-94c2-56c0e3504fc9.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 0x8f4befb4fa9c89eb1982e1f1524a30f5b4c3a9658e959c7497e87a7e708791ac. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GX89G2222454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03416a56eef3107131d138436be984c39038a550e8750e73db7766900ce0178a. 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/GX89G2255554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab31d5cbca58b6a5f1af1247856f08c48668975c452dc3237300a1f55021401. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/GX8LD2313268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab25e867bd590f28ea8889a1505675d4c72c5ce7d09279ab92939a073ddde45f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GX4R52371819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9afc4fe83925c195a645964326f6fa65bea6b9e24db19214126d5523071253c. 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/GX4R52356025.
You're Losing Me (from the vault) [Sped up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3b4b09713af45a20461e945a97a4a4211fd7cac8ac09ecace8bf92a477b17f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CA5KR2426342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e3a116d9bcc3f7a4d7b55d15d35b009fc60d7b3b4adcf3b862cab985bf7897. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:26Z), 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/CA5KR2488018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b6173f5baa799885dde2d26e62b2ed367f259869fb220ba85d0a761883cbc4. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZK6M2516272.
Untitled 05 (a good man with a broken heart)
Untitled 05 (a good man with a broken heart) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcd2aaa2b62b2a91dcff0a5c243e2bdbb52b2b50395c9aa583374d673490df3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:33Z), 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/GX3HH2588028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab1997f97fbcea342ce013f71414cee81c52ed7f44f9e1c627998cf7063d817. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GXESV2549144.
Untitled 05 (a good man with a broken heart) [Creed]
Untitled 05 (a good man with a broken heart) - Creed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13d6d46a5a01416af15dae4101dc0fe4487835efa0fcf859e052f8a25b6abb4. 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/QZWFV2573627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c0ead58e69e7a94f9ab3d689a65de8a999f3d52b6d7069b5f40e554ab4864d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZWFV2571868.
GOLDEN - HUNTR/X (KPop Demon Hunters) - slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a330d2a618572e88a2b50972fac7cbfa890a7b86ea93d1f6a14aeecac7c170. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXA3V2448906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28b0c57989e020a7ece8ffca5acbe3a6fb2963049fdb644da78aaaf13e0cf60. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MXA3V2451091.
Everything Is Romantic (Orchestra Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533af13907959b2f66f3b70bd4341be167992dac992e426ea0cb3c830c3962ad. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZAKB2531744.