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 0xfb821ba73895ebc63a650116476b35f3e72a8c15a1492f82d70c20c3609317c7. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b51ad1f-044c-49e9-9679-f16617f760d5.json and https://artists.proofprofile.net/proofs/artist/7b51ad1f-044c-49e9-9679-f16617f760d5.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 0x76dff4684a76d4aba89f6b3671e9eab8b0f8c8039ac68844655c894c050da348. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:06:24Z), 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/QZGLS2495746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465f0311993bbe03301495bf6b24028bf3545dd07df3acf49ccb9a13ee33c2be. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWQ2401641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844758713f0b3c4e6f972c3d43bf17f167eef9c201e9d4ccf21af49348f5fcba. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWQ2401642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141c9d70c1d52008968df895922f9d4042cf0e9c5b0d7bb130dffd45af921945. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:24:28Z), 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/QZNWQ2401643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d93bcd245f02996df7920a2925fa40d718ec2b4c8d9851cbe6f213c5015bcf3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWQ2401644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51acae71928986412bd8d9e5390f6138dfa8c54db6e1197b7878817e9f7a25b7. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZNWR2445702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a0e80a9501476f7b0a5ae6a7df8b07c80863b134ffe19d9e8014de5cd2746c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWS2446363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90a1226afc9f769ef9e281fa71fa835d6b58a7bda4a46a41b39dff1936d7dc2. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QZTBE2491766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc81daed91bfa2a72e2386b761366739e54bdee1f903f404d217c0a62c211220. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWFJ2401299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93b07b265838f385cec9b270732fa0e53f9fe2bf1019556092595a2ea36aa3f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZWFM2483889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a34e01bd0aa6978accdb5e4341cf73d6f5414a628c8382fcd39a337ce1c5867. 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/QT3F32442403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4a451f519cb754bb4db11486774a81933d42489fdd0b55dd6d60cc37aa8a8b. 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/QZFZ72528701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843cf6677d34aa7e3d5ac1543c449a557589f91db1fc8b2db521d129f6daa37d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN72555023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c09da6d93d478fae141ef7a0f5b595fad377d7369e2632ef2cf3bab05c03ae. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:38:40Z), 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/QZNWW2596274.
Vicente de Montpellier te regalo el corazon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd342db5132774135b02172c16ad150a54a78abafa15413eb17f6cbf8e1940f80. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:32:47Z), 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/QZTAU2568409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28b5699af2876c1818c12cd733e4ca1d029a35ad39fd55eb5a566e074d85ba7. 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/QZTAY2598472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc6b87a04671d584ff27177af51dab1a90a568552702c48fe3eecbc95f6f98f. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZTB82551840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2cb4ba7ed94aeac2687f11e251baa4ae95cf23922b280fe57e7304715a6405. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZWFL2523180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe797bcf3240ce6e0a5bc7509b1561710e9a0fed4c1d716b0546571f568773459. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:42:16Z), 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/QZWFT2529953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f850b3fb8377891cdc2e08581882e4aa7b5544db516c30e4314cb5bd9b6cb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ7U2567097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06b6e1443da7a4628ec458906aeb333b75f17fe2a6dac2d9b8f3cac9c103284. 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/QT3F62578243.