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 0x86020820c0a0ab7cac382e9ce35faf6df9dd03020269bf542693bfe5c45e1abf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e78478f-3e6e-4d09-bc22-1aa21745b0d4.json and https://artists.proofprofile.net/proofs/artist/7e78478f-3e6e-4d09-bc22-1aa21745b0d4.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 0xd3b393e4db305289cbe1337801b90a5763eaaee446f286b622bb61183422d37c. 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/CH9181800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0223937261245417731c48e5e66ba8f2d517e6cd5f3e9ca3a1c74ba1d61f6b2. 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/QM6P42367493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35c569e0890b23985ce953b37cbaa2f3b548149fa0fc923b57828709b8caf8a. 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/QM4TX2259614.
No Te Enamores De Mi - En La Farandula No Hay Amor - Unplugged Live - en Vivo
No Te Enamores De Mi - En La Farandula No Hay Amor [Unplugged Live - En Vivo (Special Edition)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ff31733c9802b776d2303923a8c0eba509f9ec950d7d6dc90d17b735283007. 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/CH9182413713.
No Te Enamores De Mi - En La Farandula No Hay Amor - Unplugged Live - en Vivo - Symphony Violin Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfc3032fc29b9df4a682874bae73f2483fd1227c3fdb483f2d0e60d8eb3445b. 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/CH9182413413.
No Te Enamores De Mi - En La Farandula No Hay Amor - Unplugged Live - Acapella en Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39232ddc07c693f326bc40ee1f7577e95beb9ef3359c75517206000219a6c7c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH9182447123.
No Te Enamores De Mi - Cinema Radio Edit
No Te Enamores De Mi (Cinema Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcceabf3ca77e8a19ff8b522f79b2e008e89f4878353053984f59ddf59753d7. 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/CH9182313713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3113e1b9f5dd7a34fdce217e6c85a187ff7248a2a16bd4912959e30f17ebb4f. 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/QM4TW2355758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0916033f4eeb8dab5ca2b6c296c1034a79ab43936c32dd64f370352643aa11f3. 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/QM6P42208452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbbcca290a8e54e856ebc5fe75d2c45bd84e4459cb446f2d8eae74ece3d89d9. 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/USNPW2400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156730ac440fc0ac22a854194a97e356b32d876bd7e9838ac3db0b46db983251. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMFME2322217.
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 0x71f0a3e3d0b91e6722255925a12dea3dbb6a54886a214554980585a99f4f208d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QMFME2322220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c4a2faeb341dc32360f36cdc81d27eca8bcb7a1049cb839679eac1d9ead3a9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMFME2322221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69012a1e90b94563b74f7f68466a5096d33f61c9c839a774ead0a1129b43f2b1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QM4TW2355656.