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 0xa3ef8fddc3ce7ebf24f212e12095a328965ed07e4047d97e55639e6f0ef43fca. 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/60791885-0bfc-4394-9f0d-438e8b87be5f.json and https://artists.proofprofile.net/proofs/artist/60791885-0bfc-4394-9f0d-438e8b87be5f.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 0x32346b664cad43d7e582db6e71b8e9ba19eb4521e88d47ffccd9764883cfd6c0. 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/ZA4PM2100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c035dc5bdc9cf806940fdfe6700d580afd809f0b8ac73c6db9807128a5252ac. 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/ZAC012400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaffe765ac4560266fe233fe6084d7c74e605ad2dd69bc737c25802853d02750. 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/ZAC012400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363d2631178f9999893b0c933243d344e6ef0e804d00b22dd8ec85bdad4c03f7. 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/ZAC012400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d48e21feada38fabae06d68c37f769db7b7e5313e22402c27cd1897b9249124. 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/ZAC012400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84feed0359d5a529d96e778efe297a12a840dbdce8a361ef208d3d65c0c90805. 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/ZAC012400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12189f2de18ab7cbf30ae849fb6ac751d5570456569af46b3a8d6639f7dfc33d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA4PM2200551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ea3a9024c3bb9357221fcd8b4bfb40d56bf0ec10289d3140b90a63cb65c8c4. 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/ZA4PM2200552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cba4b1b3dcc03da2806c335dc45548c9bb0c3a8e517245c03b5a303defbf87. 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/ZA4PM2200538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf450654153ed3a1cf7651448a451082333e1ca002d96e61e57f14be95f4bc114. 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/ZABKR2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0642411b93a2d04ccd9103f29bf7bc832a8c22367c103ff4374de6b61aec37. 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/QZWFK2372613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacef4f94c559900e8e0802d9a77f0e744adbc68cd80308c7a50effd4897ea3c. 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/ZAVWU2200077.
Heartache Symphony (feat. Systematic Soulz & Siyeni On Trumpet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70174382580cab42c066c499d15d5ab28f11d0b0510d57d8e7cbc82b6063ce84. 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/ZA56E2416737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bbee1c5c8580a5b5f7adddbc1454d4b5c41a4c3694bb7db7b557649078db3f. 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/DEZN82105904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c393000343f54dff242d93359a3a2db6ffd9eaca784e9dc83a0fcff466dbc. 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/DEH742440784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a94052f950275bcd88ce3bd1e0f750f12915562b056f737f4daf2c31a4abd. 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/DEZN82105906.
Maasai - Deep Sen & Knight SA Future Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf9c0a31b705f381220645e53ece7aa0a22acf3c35dca349c9263c6b1a0486a. 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/DEZN82105909.
Maasai - Deep Sen & Knight SA Future Mix Part 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf370fdbc03310c9a8c871f6e86b82d1a4a01fb23c4fc4c0d20deb667bbf757fb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEH742440918.