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 0x2d10c38316aa2cee3fb158ffb631ac0d5376815797283170424e560c5f27255d. 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/b87b2931-a974-4c07-8e46-ef42de8785cf.json and https://artists.proofprofile.net/proofs/artist/b87b2931-a974-4c07-8e46-ef42de8785cf.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 0xcb63c9e3143fb4370a13a9a951022b2644080dc86525d08bae5129957e49cb3a. 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/CH6542206634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee3aea357a8b9da5ade87dff98b31f307098431de15c6818a49ea61690616ae. 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/CH6542206635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccfe815175416b12e54dcfc7d88385dee8cf0888f379a93abde6a5330b2c507. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6542206630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eb1bb035761649f1f9a03a82acc6a0d9d2bc8fa19480e3a865f847308e50e3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH6542206637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde75cd2818641d0dcae8eaf12fd2c5b5aa21775e5beffe8e30bc73c85e65123. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:50:01Z), 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/CH6542204078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41745b66a12c8ae24abde939e88db766f86966178d909311d99ac84d8f432acb. 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/CH6542204086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a7a4337ffa99a6d6f424555316cf662c05009b49b7aaeec11f740618af816. 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/QZK6N2283759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f528c428b0b426df7ca48055949634c999f84dcee94f630a7242fcd2dc6f5b6. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZK6N2283761.
Eres Como La Cerveza / Yo Te Amé De Verdad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb48c2535567d3b56ad0fac4673f95d92de939016518be4f9610758bfea2423. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:32Z), 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/QZK6N2283764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854a95af9794bd2a2fd4c86aa6e68fefb38628f3250014b2fd307a98467d8df. 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/QZK6N2283765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4418aae9d804dd1720ee0940a61ce4a1288dd73b1099ec543f18d05420e1c5bf. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:33Z), 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/QZK6N2283766.
Si Te Vas No Lloraré / Me Embriago Por Tu Amor / Cervecita (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca94562a91499c8d349ffe33b100662359c881608c6184195f1395f927542c6. 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/TCAGX2326207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d7c379eaed2249e73e87a2bbfe4acb63e6a0fb0c69c3fe135e0a882a757a72. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZHN62379620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedc0e9d038767ca5999d8ba2a1820f3a8ef7d5cfa2d17552811e269032855aa. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZK6M2333283.
Pienso En Ti / Quieres Verme Llorar (Cumbia)
Pienso En Ti / Quieres Verme Llorar - Cumbia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755fbc6d4541a50459d009736db87e5ff6879e274149fda7bf4a6e89eba1af0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWFE2318377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48700e297ed64565b0784a936dfee5098a56f48236c758b31f6f6fa880d7d526. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZFYZ2483707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8832c454accaebbe24066b0cd2868909dd5439d03f7bb391718ea81b778555. 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/QZFYZ2484671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00695c81195750a23012fc1e6d3a4f3337551d84298a85e2d7d8c1ef87ac5a9f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:37Z), 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/QZK6Q2483733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00827631af1a4456595cd4a64fc3a334edf0201544096366bba50b9b94cb82b1. 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/QZWFN2451328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a495f1d6f053f9fcb3df40515b6e55ba3745e9318531781d7b45a66e7663039. 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/QZFZ62539192.