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 0xe4dd30caae2c269a5d8ec19af51498750c83f87e9728f13f2c6b7da76f44ad33. 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/9272f9da-5bf9-4f6a-a758-5d073c0ed0d2.json and https://artists.proofprofile.net/proofs/artist/9272f9da-5bf9-4f6a-a758-5d073c0ed0d2.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 0xb43d7af709bc8ccabb4c4fc3ff4519b1c0e7587bb3ae3daf012c3bc7c0259609. 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/US39K1415901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fc3c0c8eab45822ca13788c07d9137801af7f8aa113d18e9dd5589898bef78. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US39K1415903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef4723f4ffa2ba29c6efd854b7412066c3e76e9afdcf493e235feca528d1cd8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US39K1415904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f819592abcc6d1e368fd6c767c9cfd1232868fa00c6c243f2bed07da8bb3cd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US39K1415906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b52ef45db8cf28445122d46880c3065290cb677b43b24a79ef164b674022b0. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:50:29Z), 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/US39K1415907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d63a3e0e415ede1f2176d09030b044794d6361e3c1c919560edd35d21b88012. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US39K1415908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cfa5d99bf24d55cc5ee307800d44e43112ec20fbb1e0050c4c6590ef044900. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US39K1415909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb867f481294ab7ac8e748460c565596f151547bccf4ea247d0cd5495b29b45ae. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:15:40Z), 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/US39K1415910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83132454d4243bbac46991d454d0c9ad49a65098774074f3e61db46d4b9ad077. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/US39K1415911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08d135d01d90ebb9e3ed989d87e9439af8bbfa97545944f5e95e28378b39bce. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US39K1415912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a4f74b6cd0f4678ee00d8cf70799de719c0f53d6dc0a3b571414a0ffe71ddf. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US39K1415914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089c6f2875c31a4a30f39137a478db3af0e6b8a6ffb27deb0dddf7b98f921e66. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:52:21Z), 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/US39K1415915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa78e28aa9ecf2af26c272d2dc422131523ab8165ddfd8000e1ea2c63e119123. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US39K1415916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3206ae3639a00414ce3eadd0e35bc285e78e73cc7be252b5a3f787b128b442f5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US39K1415917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192348b273a3121b636b00c6e7b7588fd99a26b677efeae32ff2f1f1301c0bf4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US39K1415918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c5527236f9ebf7e950cb271da93d4218a699e86dd8d8eee19100f2e857a421. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US39K1415922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb96b353edfee3cb5c2294b6368bab97cc7c5805543a351066e7427f230bc352. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US39K1415929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c4c81fbe9225d4101c0251a87b1e2ebb97de0b8fd9b2297413747dc9830e2c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:47:52Z), 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/US39K1415930.
Lucha de Gigantes - Single (Norteño Banda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4829ea2e045d030d46b58eb780ff12005ee34fe4871e0d9d0482f764aefb5601. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADN1825708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8aadf2832b999eedbd59328e2166bf1fbf7a9e7d4ecea272dbc8d39650ce9e4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCADN1825715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531a0a27e63bbe3ccf72e835d9fe4fa92b401c01b44c6e733a1dac5af8eac937. 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/TCADN1825727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c9a8d67838b5260c15d70b3fe987e7f68fa51e51013f02565f39bb4949cd74. 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/TCADN1825730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3137d981e79cb3c8edf1f19117f6b8eea5ad1702ccfa8c5295562562f5893e6e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:53:22Z), 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/TCADN1825738.