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 0x847d2f046b48b00cf2690bad08f074fed3d66ed2679f0ed146afbcf618a155e8. 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/cb5f1d93-0a6a-47bc-b4b5-42038debe700.json and https://artists.proofprofile.net/proofs/artist/cb5f1d93-0a6a-47bc-b4b5-42038debe700.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 0x1e563f6f2912b4b251c5cdd32b4daa7c0f9e9c388abb7e7855f157fd67a26eaa. 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/QZTVM2399480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9133120c95760d45523a4c5f014dae7deaa175e9cf651f238d3c6d3324fcf95b. 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/QZK6H2022316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ee2cba7010a7805a1b3ffc6bd9754e0adbcce0c21e863cfe477c756fd2c48. 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/QZTPX2326683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf930e712dc6fc5b3e35d45d0a22e2213d22685dd4f246531e6feea2cb3fc02bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJY2394300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39e7744893a36ca7a981bfd964c4b437d22c40dab8641908cb5b3eed44adf11. 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/QZNJW2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a47ac739cab5bf2b89cb7d38634c07738311307f688f8de78544ceb4ba8c3b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMZ92360668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b2e0eee546f5cf111afc67a4508b7a0a3d0a24110c34031169d296a616074. 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/QZW9M2213395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cef571fc72d10e08410433caf66e46b4702d0e82106a37f1bfee85f60a4934. 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/QZW9L2261580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044933bd1231d466a81b41c48b08c808d3015b3d8c499276befece9d9fd0bcb5. 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/QZNJY2245079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8565047ebc617105c37496106d2ab94429afcf60b3dfda5742243a9797dda1. 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/QZMZ92233399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95a18451c7f85f437a017809b8d9835e86fb57744edf31e5bae4cc529f7fe1b. 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/QZHZ62226062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488553ddf369b3fc4e43477a2ed647654428b5b734968e298e2bd6d9297509e9. 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/QZMEQ2030229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e4a62d4d239e24d293adff57750dafbf9d7b888be4e7f2afa51286fe07f663. 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/QZFYZ2097245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb04081073728cd0cee19e648cc3fb7fb18f54d59996df67f16794962475eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEYOK2416639.
Gata Rkt (feat. nysix music, andrehbred, son gotten, uzbell, el goldo de las conec, jack napier, edu music, el pesa 9, timy song, Jhon Jairo, chuky indica, chulimane, gabo el chamaquito, la f
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abc5b83f84ca6ce5a2560f83c5322b1c38005a874a73945dafb42a4b9731722. 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/CA5KR2301049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee06605a6894fe51b14a779b16e7e5d21e316a9108cdc9b7314c6def0586c61. 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/QZMZ92257448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011bd8a4545b79e4207f8bf4a4632033ca00cac36234882d0318b7b969baa4f9. 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/QZW9L2494693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a2179ee8275c7e109017d4cddeb20a7ae310051d5232f92533d357597c19fe. 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/QZK6L2068779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf79d9a0024c70b1aeeb511335878522a0b94497b1b52b5637282f02e1f54fdf. 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/QMBZ92354113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9285980e3031a1d24701ab72362373d5656561d46c0c90796109ef75dbf61dc8. 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/US7VG2523401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7dfe57a356d430819e0ebc03b66dfb58a4b95c9dc5eda512d715604b5eb6b9. 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/QZW9M2426894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4a03deee622fe61dbb0e086db69a7acb79880038b7833089eabf45e38df63. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZW9L2487052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65f219fdb2e748168f3fa1a00c97843f086f30c965e98788d0a7ed88a2ab682. 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/QZK6N2556472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1b8af164753ba7d36c995a41f9851dd963574761c9fa8e90b738ff55746156. 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/QZNWZ2078361.