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 0xf66747a9cbf81f2f00210774a860c72cc184be7d4b6e37e882fea42e7542b58c. 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/13fef948-bb0c-4761-bd02-b808d854f524.json and https://artists.proofprofile.net/proofs/artist/13fef948-bb0c-4761-bd02-b808d854f524.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 0xa66d63cc18008cb4de9064d85716a04db776e46094b4676e2272749e6b5a4abc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6M2325890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6628234cbff5e5231566768584e154fc9ac889d34d7f88cfa08b22cfee45accb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNWU2331521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d92aa6765bebf071d8ef457d9ffee5e736aceefeb1e7a42c8d7309a146b7ae6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNWV2331262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca854e3597a2786ceb6b0724ca534c8704924f99f36e4126dc930fd5e8b7eab4. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:24:22Z), 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/QZNWV2331263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8056f0628b3396a5ad55f3c4ea36dd7df06a0137a81b1c6d190ef555ad6ad0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWV2331264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2975a539ecce71baccaaf7ee82564f88bfaa46404ae4390908387959e0ba8c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWV2331809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7378fe2a1c765f55113eb27ffd44ef74aa6d8c9497ac4cf364e87c4bea798faa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTB22314169.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e777edd8e209b0d9478c81158de21f3a8931e976683860a83269a6551c40567. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:28:07Z), 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/QZTB72339989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6052f7a5fa14dd9ae77a396e554a4c26163829da7174a8efe56d04127c25ee7f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:22:01Z), 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/QZWFH2331638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b62a712611ed3b23d31671d48b89d128abf6f21e424f1ef972de246dab2af. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDA62478153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9d342c78b45320e5f59c2d1d3e71fcf4431169383e4d5796543057d7ab64bf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN42444790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73d30d7ec38cdb7bee26155804e312f6c8677e6ffaed573ffb4b50547f6c4f7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHNB2445138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24de08ff9b12f18e0e3118589c1f4ff8402d21e01e3bf2423c89a853c4f50411. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHNB2410470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a787b8b2764037934d2123c59ecd46a7a3558f85586d12e8f094cf4bc22145. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6H2483961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701b5bed309693fc3b5d68b2a3e78b931ba44609d1c89cd7a37d4f537120b742. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:01:26Z), 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/QZNWW2449889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eae818a11b8613f35cd2b1b92383ea71a97c2297c58e42a35f2af3f535c74a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPLR2471790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc7bac7202b9c8ea49f8c41f4c10d7239e15a89a421e2bcd4863c5f13f3f244. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZRP42410446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fc630077596442fa05d3a96152c074ef7bd587923a01ad1f63c7d660e26318. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZRP52422146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992b3ed8996c64a0b28ee6fa90374f6cbd77f3c3d455d226ea82a2d30982f8e7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAT2437002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77b041e9c61b9cfd82b76256eb2dddbea26a2ffbd5f10a0de829545ede58706. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFH2445351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5446ffb02cc297ccf36d484e22cbec9d5c6ada388c9f3e6e71c36cbfb9cc40. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ72542541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995af18f9bc3d0adc166d37ee5e8566e5a97aecffd08856b34229c02b008312. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZZ7M2407722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae5e7fe78d893811cee63f70f4447a6c6237a19eee3798d0cb472801ed2fca7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNWW2545933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012f1f37e73d48ec6892b1bd3d6a4f57fb61b529e623235fd0d2dc9c3b9f1dbe. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTAT2510651.
Te mentí cuando te dije que todo estaba bien