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 0x92e297c84b480178be1a34b29c62677fd37a9b14f96dc38589cd01078d9e7a8c. 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/ded6beb1-2928-4630-88ec-77bc81366e57.json and https://artists.proofprofile.net/proofs/artist/ded6beb1-2928-4630-88ec-77bc81366e57.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 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 0x6adc12a232d2f5d65f4f6d625c0300a06fc6c4fb0acc428f8cfa099aa1088527. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6P41725394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7377c1b2ceeeb93742c4c60975f32124f9f6a4476fbcf4da2484a52fd6b448. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QM4TW1711080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e9dc1705d36babc1ce9f47aa93a69eba8f6254ee08e77e29c0d01dfe4a6926. 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/QM4TW1711086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08cb91ee18e963606f25f83b6ff6b17a322d19f7a45f062dbe6d01778738b30. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QM4TW1711092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7377c1b2ceeeb93742c4c60975f32124f9f6a4476fbcf4da2484a52fd6b448. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM4TW1711080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adc12a232d2f5d65f4f6d625c0300a06fc6c4fb0acc428f8cfa099aa1088527. 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/QM6P41725394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0ef9fd98bbc3e1a53e6c3cee4ba7cf8d09799c13b01e85920023b61449b052. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM6MZ1743141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b67426fb164af4552c0980695292647d1609559f85c9c3480e6b3675a4a4f. 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/TCADR1858069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b67426fb164af4552c0980695292647d1609559f85c9c3480e6b3675a4a4f. 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/TCADR1858069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8170377043c93dcbef2471dfb54bc18ff10fc8ce5d85c626ef8ae181d459bfc2. 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/TCAEX2052020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0183f765fc8e26a489c8d5fb5c95ddeea762ec891e4819cbe73b906e1b84df62. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCAEX2052028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0183f765fc8e26a489c8d5fb5c95ddeea762ec891e4819cbe73b906e1b84df62. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAEX2052028.
MICKY WOODZ ll DJ LIENDRO 420 SESSION #1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60194fea916347a47ef56fe92145edb4b68eb9bc8d9c3af0c5b5d1a2f5d929b1. 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/US3DF2163922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25785db295519cf71fa3b8fa458681ea0d6205b6035597bb1fb3752d56b530c1. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QM3DF2128405.
Ella RKT (feat. El Comandante, Erredoblebe, DJ Plaga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b2f9e4d86c9b52e5ba2f11bdd34d7dd393877ad1ec6e9a3c7575f72978c076. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USANG2271661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07db9bd2eb9a63ab087ae5eee1c9d254c69af11250e27d3aa78e476e80017a5d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/US3DF2406045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8e36a565644bb576ec1bee3df794ac189443fa084b89654dc064cdbe1500b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QMDA71869839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a6e3456b5109b9cb8967c918e528e5747e96deabcc10cc5fe3f836d251375. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QM6MZ1713507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8e36a565644bb576ec1bee3df794ac189443fa084b89654dc064cdbe1500b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMDA71869839.