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 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 0x90dab0f97d8abaa0e9c75da6d28d1082fabcfabc8e3633c60236d067737e3162. 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/0197517e-28d6-474a-9fe9-ce78a468c5c3.json and https://artists.proofprofile.net/proofs/artist/0197517e-28d6-474a-9fe9-ce78a468c5c3.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 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 0x96ace2b1aa0a766d581ef1b41c9232aa2ebbda07608cd727fe0ce4075f0446f4. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/ZAYK81700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78b9865fbc2896975aaf2ae5d73902fad3785ad418b461ba50d733c080a7b37. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ZAYK81800010.
Leader Of The Wave: A Playlist By J Molley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5baa2a5ec495b7db10162a1184e5eff3c1d0596dcb1fda074bcaf6a10bee095. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ZA56E2000321.
Ang'na Stress (feat. Costa Titch & Yanga Chief)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d7f42a559ba6d1c1c55f340ccf09b3674453539c52037155e4020cac416d4a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ZA56E2002607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b4bfaa7bb909cb7f50f98c2f3bdb7f27c82e02f9ccc0c2d9e253b22a7b2f8f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ZA56E2002608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ae14d0d327ea1dff2218199305b67a2b6f41413b92cd368c66d3f3ce0e85b0. 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/ZA56E2002609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb9d40330cb18aa9630e4aea9428b8f7813b280f77937a05bc65bcadfa77068. 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/ZA56E2002610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b940cb20e779031f87e0787d66a5266ca6a2842205492f5c6c6eab211a4a33. 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/ZA56E2002611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4363349345d57f66b21146256d99d3a5243af76651156cfdc4ad28af2f7ce6d. 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/ZA56E2002612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f29ece96a1888366bcdaad5538b4d76acb1f4cd8ea42c9f5f63130d9c2fc8e. 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/ZA56E2002613.
On Camera (feat. Frank Casino & Riky Rick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee563180f15fd2377417a5d855cbd8037e036fe85c62780a2f8c47afd86f0dc. 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/ZA56E2002614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49232a4faec37cc0cf6a589cdf9d41218c878418bde15bbaa399c7f83cc8c63. 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/ZA56E2002615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c886d9f3f3e429fb1fa28ece0becfc3f349beed0f8036eae027f9ef29235526. 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/ZA56E2002616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70272ffda6e5151620023b887b27b64658b28a01c97e17349d995224e605820. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ZA56E2002617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9a856512e72c13fa701077426cb76a95a01bc5d2b5a22c6e90bd58b97ceb6e. 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/ZA56E2002618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabedd6eedc9aec1942033ad63f4fca389937eeca27937cca0e32d747541780a4. 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/ZA56E2002619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459f03050dc3d0b85caa135cc4542b9dcaf84551158c1aab71cc0e353f3fe659. 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/ZA56E2002620.
Ang'na Stress (feat. Costa Titch and Yanga Chief)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb7ba0ce198c8443bd8801c647345b0880a4775b878602681d87821d1d448a5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZA56E2101814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa219e86b153d9391c03b9cfeee1b362b70407b41003106797dc85cc7b313cc18. 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/ZA56E2101818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907f6aa419d4736e73be9538edd6dfe3a3121e32065fd555a877343e79311591. 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/ZAQF21700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6373bd76d4903f08f9fe9732117e64d38ca944eb86945c435745d3041dddd3f. 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/FR96X1800934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a7a01773a16bfe4f50e06d830c7cd01fc605c2f6e09274e41844c6f46b4fbb. 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/FR96X1812829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a410f9b4bcc3ef511ec7db96fb4b0d7ad1baa233ad454e0f726d1035d01e0. 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/QZNJV2102327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f0426c513c4ed6564696d6a62d517e3f805abc3c12a0ece0be0088845f2058. 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/ZA56E1802144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba0b82b6a8153c53a0b434fbc7eda48f223c4d5c76d1139ae31a46b1f573b56. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/ZAIY11700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e7e972740fe47c1c79931023f36394fdbde684941f3571e77412db09cf860. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZA95J1700024.