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 0x076f187e20eefb789a850255f87b0e0ba04f173a162d481e0e558985912df818. 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/ec8c7aa9-ea80-4621-b9fb-70512af618e4.json and https://artists.proofprofile.net/proofs/artist/ec8c7aa9-ea80-4621-b9fb-70512af618e4.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 0x629430a73e4edf7304061ab0d6bd2faa6d983f24354cf101a6f0fdc7f82b440f. 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/BCIH82203386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc3da080080083ece70912daaa535980e8286408754db67e3d659bc4d10860e. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BCIH82203380.
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 0xde01613c9aa1520d89d38b5e83932473d0b0d5740b451736c0fd4e3f6b9e25ae. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BCIH82203382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ea6af6206f8f48f492db0a63b40b7a22ead8020de1ff06002f426c18d09e2f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BCIH82203384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a1e7a429cd274d540765e6914abbe68e1d23735113717c9d95c4636430c2d8. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BCIH82203385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ef7470f84f771fdd5d6610141b7b85c9fb7648bd5c518eb7307f324cb8d3d. 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/QZNJX2418819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d382114a7fb01f0812f664ca7c4146b0aad870b8fec617999c1a90fc82f800. 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/QZNJV2445711.
Ritmada Todo Mundo Odeia o Chris e Ama o Greg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b2683bbf0ac77d21829ac106f9b174608b6ff4fba65f0f93a901b433663928. 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/QZNJV2403494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e93f26bd4f80eb90eab198d9b50d9112ae41be07b0f2aeee495552bb295f5d. 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/BC1U32201162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7217d6862cd4c9e2a8c0dd4499a9cc9a33b5d78173f90e6ea9ee0b49b7ba2513. 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/BK5H42400068.
Vou Te Apresentar a V-Strom, Ela Gosta Da 66 Preta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378dc0a859b399a3cd692f73c17fc7094bdf32c4bf15547b50f693c64d35d687. 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/BCUWS2500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64976c0ef0ce4d91f73b036131b8f28db71e432ca405f0c534c001c79118a5a. 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/BCUWS2500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c66303806d913f5e97975f3a4030ceab9ce8dac3ce7cf6fda73c3cfa599cb36. 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/BXKG22500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533726ff4e5688a67ee663432faf262e563a37fb13015cdabf064d2d99d17704. 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/BCUWS2500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25cc6cc5db532255be082846496f8a60772d54d99f5db8e2e847a1413dfd4f9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BCUWS2500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0141d5230c1f52750f3a5cef3c6a5d662ff3c0f622773724a892cf64e23874. 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/BCUWS2500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4274560d8f122f661fb15c06787f2c1c7bd77fb523c520ccdc449fca878b73cb. 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/BXKG22500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4bf34967dbc2fae19f86eb41bf0e8208ddc4732ef69f95a967618f4a8657fc. 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/BCUWS2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f41584bb5fb5ca4d555d4fc2614cee79f6cc00c0af7fe2dca9e751dff1c5638. 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/BCI5M2400236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21a0eb970c55825bf52bc01dffd6a89ccf0e8902ee2f3a4eec12a565546a13b. 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/BCLWS2404661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3110a694f033430430a8c678fc015fa07fd9608da274ba849488670d4e57473c. 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/BCUWS2490306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae9437076c288f19967d21df80458a64cff6ee2f2e652dfc0b3718d7a0f81a0. 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/BKF442400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3539d24e721555f883cb9fc2407ffc6554b08fd54c13bac2f1e7fe1ca23fbebc. 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/BKF442500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffadfabf0013015e751f6ed3934fc91174f04aaef2dd2eadc906b20428cb575. 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/QZGLS2415241.