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 0xdb5984a57138547cd124143235a2da459ea56ebeee11620db0b34d1f3885310e. 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/4cbba2cc-68a7-452f-82ec-909f10dda91b.json and https://artists.proofprofile.net/proofs/artist/4cbba2cc-68a7-452f-82ec-909f10dda91b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Te Apuesto A Ti (feat. Monrrow) [Original Mix]
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 0x44637f67ae04e2f09ecc518dcc5ed63ae065f290143a63e38e67befcd9ddfefc. 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/US7VG2465893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d705d7bf5b1af3831f13e8c38a6572cdce69b56563873b20ac4adf1bc37b9a0. 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/QZW9M2333983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5197a9b474a31d79cc01a8de6e2868d9c6f1346475aab4d71e10abc46ea49bda. 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/QMDA72349808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1875cfb9814b9e395a5bc94a4c1805019c9c688d265298358a16eb5fb6f2c980. 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/QZYFZ2315401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf7a995a7176c20106ee16bcbc8d1b74cfc9beb2838a5e0dc5d3eee8fe77bb3. 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/CA5KR2348391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e95fd17e82db6c8d1ad730505fe0e439b23901c7f476cef04423715cc08243. 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/CA5KR2217428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880f0efb33778eaf4d1b7c7d8d69efc245c1b513be0d5dbdfdd530f573e2f0f8. 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/QZK6F2108384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f3989344504bf904624f9822260fe86846b2933fea28630c1fcf5e0b7db82a. 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/CA5KR2166405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207519319e15ead2e5fbcc869527fea46f1d33f749c8d09a4db157d8dcdfb689. 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/CA5KR2128329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341eea6e7b92484defb73db29953b1d6569351c07d56d4a7f8001814d0d72a43. 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/CA5KR2113667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa4bc56aab4f3e245e0495d9763b9c1184d60b2d76803a4d1ef594254463d9c. 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/CA5KR2091183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5e79fa2afdb069f50f477b6c5befc879629673c52a8ce70adc4aee0e773833. 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/TCAFA2076299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d0418138afb36c0d0ea1d47642a60bde83099e089c3bd8346c443bd496038. 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/CA5KR2068328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf97c9354b27be7236f42acb1c598b58463a4d934d7c82f77ef7f0a6b1b9480. 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/CA5KR2036417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96e7550e3a87ae68ba8824957415c1e9fd667d42bf4496e0c9aa9ff647f3432. 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/CA5KR2036418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8840a5e7430b14ea905dea983b0dfcea5275a480e0ef313f1259c68059b9ecf0. 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/CA5KR1846233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f53e0c27cf357dc7ec12d5d44f399f6e3791b4afc719be61906570df48b63a7. 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/QZWDW2448073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610fbd18c07c73e51029c12b74197c69616f84ec32ef7ae6156399a062caaa51. 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/QZWDW2417359.